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searching for Coordination sphere 96 found (149 total)

Chromium(II) iodide (209 words) [view diff] exact match in snippet view article

ligands. Reflecting the effects of its d4 configuration, chromium's coordination sphere is highly distorted. Treatment of chromium powder with concentrated

Caesium sulfate (126 words) [view diff] exact match in snippet view article find links to article

"density-gradient") centrifugation. It is isostructural with potassium salt. Coordination sphere of one of two types of Cs+ site in Cs2SO4. Environment of sulfate

Decomplexation (443 words) [view diff] exact match in snippet view article find links to article

particular interest when the ligand has been synthesized within the coordination sphere of the metal, as is often the case in organometallic chemistry. Ligands

Tungsten diselenide (1,413 words) [view diff] exact match in snippet view article find links to article

covalently bonded to six selenium ligands in a trigonal prismatic coordination sphere while each selenium is bonded to three tungsten atoms in a pyramidal

Manganese(II) sulfate (417 words) [view diff] exact match in snippet view article

crystallography (see figure). The tetrahydrate also features Mn(II) in an O6 coordination sphere provided by bridging two sulfate anions and four aquo ligands. Typically

Vanadinite (1,318 words) [view diff] exact match in snippet view article find links to article

Chloride coordination sphere

Non-coordinating anion (898 words) [view diff] exact match in snippet view article find links to article

as counterions for cationic metal complexes with an unsaturated coordination sphere. These special anions are essential components of homogeneous alkene

Cyanometalate (1,431 words) [view diff] exact match in snippet view article find links to article

a highly basic and small ligand, hence it readily saturates the coordination sphere of metal ions. The resulting cyanometallate anions are often used

Cyclopentadienylvanadium tetracarbonyl (242 words) [view diff] exact match in snippet view article find links to article

pressure of carbon monoxide. As confirmed by X-ray crystallography, the coordination sphere of vanadium consists of η5-cyclopentadienyl and four carbonyl ligands

Template reaction (630 words) [view diff] exact match in snippet view article find links to article

template effects emphasizes the pre-organization provided by the coordination sphere, although the coordination modifies the electronic properties (acidity

Heck–Matsuda reaction (425 words) [view diff] exact match in snippet view article find links to article

These results also show the complex interactions that occur in the coordination sphere of palladium during the Heck reaction with arenediazonium salt. A

Clathrochelate (380 words) [view diff] exact match in snippet view article find links to article

not directly break any metal-ligand bonds, but occur in the second coordination sphere. The slowness of the metal ion exchange enables certain experiments

Neodymium(II) chloride (225 words) [view diff] exact match in snippet view article

mineral cotunnite (lead(II) chloride, PbCl2; orthorhombic, Pnam) with one Pb coordination polyhedron showing the ninefold chlorine coordination sphere.

Sodium zincate (292 words) [view diff] exact match in snippet view article find links to article

sodium cations. The salt Sr2Zn(OH)6 features zinc in an octahedral coordination sphere. Related oxides are also known such as Na2ZnO2, Na2Zn2O3, Na10Zn4O9

Cadmium cyanide (341 words) [view diff] exact match in snippet view article find links to article

cyanide adopt similar structures. As such, each metal has tetrahedral coordination sphere. Cyanide ligands interconnect pairs of metal centers. Two of the

Caesium azide (276 words) [view diff] exact match in snippet view article find links to article

Caesium azide Coordination sphere of azide in CsN3 Names IUPAC name caesium azide Other names cesium azide Identifiers CAS Number 22750-57-8 3D model

Thallium azide (224 words) [view diff] exact match in snippet view article find links to article

Coordination sphere of azide in KN3, RbN3, CsN3 and TlN3.

Trirhenium nonachloride (389 words) [view diff] exact match in snippet view article find links to article

Re3Cl12 cluster within ReCl3, shown with full coordination sphere around each chloride.

Potassium chromate (488 words) [view diff] exact match in snippet view article find links to article

ion adopts the typical tetrahedral geometry. Structure of β-K2CrO4 Coordination sphere of one of two types of K+ site The environment about the tetrahedral

Potassium azide (624 words) [view diff] exact match in snippet view article find links to article

Coordination sphere of azide in K,Rb,Cs,TlN3

Vanadyl perchlorate (428 words) [view diff] exact match in snippet view article find links to article

perchlorate and the rate of elimination of water molecules from the first coordination sphere". Inorganic Chemistry. 6 (3): 583–590. doi:10.1021/ic50049a035. Furman

Molybdenum oxytetrafluoride (248 words) [view diff] exact match in snippet view article find links to article

of alternating Mo and F atoms. Each Mo center is octahedral, the coordination sphere being defined by oxide, three terminal fluorides, and two bridging

Substitution reaction (1,456 words) [view diff] exact match in snippet view article find links to article

rate determining step that involves release of a ligand from the coordination sphere of the metal undergoing substitution. The concentration of the substituting

Uranyl sulfate (331 words) [view diff] exact match in snippet view article find links to article

The trans-UO22+ centers are encased in a pentagonal bipyramidal coordination sphere. In the pentagonal plane are five oxygen ligands derived from sulfate

Carbene radical (983 words) [view diff] exact match in snippet view article find links to article

reactivity to electron-deficient substrates. Furthermore, second coordination sphere hydrogen-bonding interactions give rise to faster reactions because

Potassium sulfate (1,033 words) [view diff] exact match in snippet view article find links to article

sulfate adopts the typical tetrahedral geometry. Structure of β-K2SO4. Coordination sphere of one of two types of K+ site. SO4 environment in β-K2SO4. It does

Titanium(III) chloride (1,207 words) [view diff] exact match in snippet view article

polymorphs of TiCl3 are known. All feature titanium in an octahedral coordination sphere. These forms can be distinguished by crystallography as well as by

Wittig reagents (723 words) [view diff] case mismatch in snippet view article find links to article

1021/om00066a021. Schmidbaur, H. (1983). "Phosphorus Ylides in the Coordination Sphere of Transition Metals: An Inventory". Angewandte Chemie International

Chromium(III) sulfate (623 words) [view diff] exact match in snippet view article

Structure of solid Cr(SO4)(H2O)(OH), showing the CrO6 coordination sphere typical of many chromium(III) compounds. Color code: red = O, yellow = S, dark

Uranyl acetate (884 words) [view diff] exact match in snippet view article find links to article

bridged by acetate ligands. The remainder of each (heptacoordinate) coordination sphere is provided by an aquo ligand and a bidentate acetate ligand. One

Lead(II) chromate (972 words) [view diff] exact match in snippet view article

similar to other compounds of the type MM'O4. Pb(II) has a distorted coordination sphere being surrounded by eight oxides with Pb-O distances ranging from

Borole (4,538 words) [view diff] exact match in snippet view article find links to article

with the chemical formula C4H4BH has yet to be isolated outside a coordination sphere of transition metals. Substituted derivatives, which have been synthesized

Potassium heptafluorotantalate (707 words) [view diff] exact match in snippet view article find links to article

be viewed as distorted monocapped square prisms. In terms of the coordination sphere of the heavy metal, potassium heptafluoroniobate is similar to the

Copper(I) thiocyanate (816 words) [view diff] exact match in snippet view article

The sulfur end of the SCN- ligand is triply bridging so that the coordination sphere for copper is CuS3N. Copper(I) thiocyanate forms from the spontaneous

Barium hydroxide (927 words) [view diff] exact match in snippet view article find links to article

Coordination sphere about an individual barium ion in Ba(OH)2.H2O.

Alkyne trimerisation (1,930 words) [view diff] exact match in snippet view article find links to article

metal-alkyne complexes. The combination of two alkynes within the coordination sphere affords a metallacyclopentadiene. Starting from the metallacyclopentadiene

Geometry index (698 words) [view diff] exact match in snippet view article find links to article

one should check if there are some additional interactions within coordination sphere. For example, in complexes of mercury(II), the Hg···π interactions

Dissociative substitution (896 words) [view diff] exact match in snippet view article find links to article

rate determining step that involves release of a ligand from the coordination sphere of the metal undergoing substitution. The concentration of the substituting

Oxoborane (296 words) [view diff] case mismatch in snippet view article find links to article

Oxoboryl Complexes: Boron−Oxygen Triple Bonds Stabilized in the Coordination Sphere of Platinum Holger Braunschweig, Krzysztof Radacki and Achim Schneider

Potassium octachlorodirhenate (624 words) [view diff] exact match in snippet view article find links to article

chromium–chromium quadruple bond of [Me8Cr2][Li(THF)]4 via modification of the coordination sphere of the alkali cation. Preparation and crystal structure of monomeric

PLAT domain (295 words) [view diff] exact match in snippet view article find links to article

TR (2001). "Structural and functional characterization of second-coordination sphere mutants of soybean lipoxygenase-1". Biochemistry. 40 (25): 7509–7517

C2-Symmetric ligands (1,175 words) [view diff] exact match in snippet view article find links to article

the orientation or disposition of high symmetry ligands within the coordination sphere of the metal. Notably, EDTA and triethylenetetraamine form complexes

Metallacyclopentanes (474 words) [view diff] exact match in snippet view article find links to article

Metallacyclopentanes also arise via the dimerization of ethylene within the coordination sphere of a low-valence metal center. This reaction is relevant to the catalytic

Shilov system (660 words) [view diff] exact match in snippet view article find links to article

Shilov cycle The overall charge is omitted from the complexes since the exact coordination sphere of the active species is unknown.

Photochemistry (2,835 words) [view diff] exact match in snippet view article find links to article

transfer. This electron transfer can occur within the inner or outer coordination sphere of the metal. Here are some different types of photochemical reactions-

Transition metal ether complex (1,285 words) [view diff] exact match in snippet view article find links to article

Formula of metal-chloride-ether complexes Coordination sphere color TiCl4(thf)2 TiO2Cl4 yellow TiCl3(thf)3 TiO3Cl3 blue [TiCl3(thf)2]2 TiO2Cl4 green ZrCl4(thf)2

Diphosphine ligands (823 words) [view diff] exact match in snippet view article find links to article

72 atoms in a ring. To position phosphine donor groups trans on a coordination sphere, several atoms are required to link the donor centres and long-chain

Formate dehydrogenase (959 words) [view diff] case mismatch in snippet view article find links to article

Andrew; Ogata, Hideaki; Ribbe, Markus W. (2022). "Second and Outer Coordination Sphere Effects in Nitrogenase, Hydrogenase, Formate Dehydrogenase, and CO

PMDTA (536 words) [view diff] exact match in snippet view article find links to article

PMDTA. One of the terminal Li centers is pseudo-tetrahedral in an N4 coordination sphere. The other terminal lithium atom is five-coordinate and binds to

Dichlorotris(triphenylphosphine)ruthenium(II) (787 words) [view diff] exact match in snippet view article

RuCl3(H2O)3 + 7 PPh3 → 2 RuCl2(PPh3)3 + 2 HCl + 5 H2O + OPPh3 The coordination sphere of RuCl2(PPh3)3 can be viewed as either five-coordinate or octahedral

Tetramethylphosphonium bromide (138 words) [view diff] case mismatch in snippet view article find links to article

ISBN 978-0-471-03393-6. Schmidbaur, H. (1983). "Phosphorus Ylides in the Coordination Sphere of Transition Metals: An Inventory". Angewandte Chemie International

Ligand (3,307 words) [view diff] exact match in snippet view article find links to article

ligands. Chiral ligands are useful for inducing asymmetry within the coordination sphere. Often the ligand is employed as an optically pure group. In some

Iron–sulfur protein (2,508 words) [view diff] case mismatch in snippet view article find links to article

Andrew; Ogata, Hideaki; Ribbe, Markus W. (2022). "Second and Outer Coordination Sphere Effects in Nitrogenase, Hydrogenase, Formate Dehydrogenase, and CO

Einsteinium compounds (1,362 words) [view diff] exact match in snippet view article find links to article

Wester, D.; Williams, C. (1983). "5f state interaction with inner coordination sphere ligands: Es3+ ion fluorescence in aqueous and organic phases". Journal

Monazite (1,970 words) [view diff] exact match in snippet view article find links to article

compounds of the type M(III)PO4. The M(III) centers have a distorted coordination sphere being surrounded by eight oxides with M–O distances around 2.6 Å

Neodymium(III) chloride (2,487 words) [view diff] exact match in snippet view article

several selenium oxychloride molecules coordinated in the first coordination sphere, that is [Nd(SeOCl2)m]3+. The laser liquids prepared by this technique

Bond valence method (3,337 words) [view diff] exact match in snippet view article find links to article

theorem which states that the more the individual bond lengths in a coordination sphere deviate from their average, the more the average bond length increases

Migratory insertion (2,262 words) [view diff] exact match in snippet view article find links to article

involves the alkene and the hydride ligands combining within the coordination sphere of a catalyst. In hydrogenation, the resulting alkyl ligand combines

Associative substitution (1,140 words) [view diff] exact match in snippet view article find links to article

held nucleophile can exchange positions with a ligand in the first coordination sphere, resulting in net substitution. An illustrative process comes from

Nitrate reductase (1,608 words) [view diff] exact match in snippet view article find links to article

the four thiolate functional groups of two pterin molecules. The coordination sphere of the molybdenum ion is completed by one amino-acid side chain and

Phenylalanine hydroxylase (3,687 words) [view diff] exact match in snippet view article find links to article

the iron atom, although the pterin cofactor remains in the second coordination sphere. On the other hand, a competing model based on NMR and molecular

Lanthanide (10,385 words) [view diff] exact match in snippet view article find links to article

that the later lanthanides have more water molecules in the second coordination sphere. Complexation with monodentate ligands is generally weak because

Mi Hee Lim (1,032 words) [view diff] exact match in snippet view article find links to article

amyloid-β species Mechanistic approaches for chemically modifying the coordination sphere of copper–amyloid-β complexes Crystallographic and spectroscopic

Fulminating gold (1,047 words) [view diff] exact match in snippet view article find links to article

tetraamminegold(III) cation with either four or one gold atoms in the second coordination sphere. This geometry is supported by the diamagnetic character of fulminating

Nickel hydrazine nitrate (530 words) [view diff] exact match in snippet view article find links to article

(34.45) a Nitrate content (%) 44.47 (44.49) a Nitrogen content in coordination sphere (%) 30.25 (30.14) a FTIR peaks, (cm−1) 3238, 1630 (NH2); 1356,1321

Chloro(pyridine)cobaloxime (616 words) [view diff] exact match in snippet view article

mono-deprotonated dimethylglyoxime, in the equatorial plane. Completing the coordination sphere are chloride and a pyridine at the axial positions. The cobaloxime

Dance Your Ph.D. (2,482 words) [view diff] case mismatch in snippet view article find links to article

Diiron Complexes: From Solution Behavior to Modeling the Secondary Coordination Sphere” uses breaking, tutting, animation, robot, and waving dance styles

Actinium (4,690 words) [view diff] exact match in snippet view article find links to article

Ac3+ is the largest of all known tripositive ions and its first coordination sphere contains approximately 10.9 ± 0.5 water molecules. Due to actinium's

Holger Braunschweig (781 words) [view diff] case mismatch in snippet view article find links to article

"Oxoboryl Complexes: Boron−Oxygen Triple Bonds Stabilized in the Coordination Sphere of Platinum". Science. 328 (5976): 345–347. Bibcode:2010Sci...328

Copper protein (2,020 words) [view diff] exact match in snippet view article find links to article

protein. Two 2-histidines, 1 methionine and 1 cysteine present in the coordination sphere. Example for Type-I blue copper protein are plastocyanine , azurin

Siderophore (5,471 words) [view diff] exact match in snippet view article find links to article

triacetylfusarinine encapsulating iron(III) within a tris(hydroxamate) coordination sphere (color code: red = oxygen, gray = carbon, blue = nitrogen, dark blue

Jenny Y. Yang (1,056 words) [view diff] case mismatch in snippet view article find links to article

Nickel Bis(diphosphine) Complex with Pendant Amines in the Second Coordination Sphere". Journal of the American Chemical Society. 135 (26): 9700–9712.

Dioxygenase (2,879 words) [view diff] exact match in snippet view article find links to article

Bidentate coordination of 2OG and water completes a pseudo-octahedral coordination sphere. Following substrate binding, the water ligand is released, yielding

Phosphorus mononitride (4,702 words) [view diff] exact match in snippet view article find links to article

iron adduct as a [PhB(iPr2Im)3Fe-(CNtBu)3]+ cation in the second coordination sphere. The corresponding terminal linear Mo-PN anion can be isolated and

Lithium iron phosphate (4,195 words) [view diff] exact match in snippet view article find links to article

form FePO 4. The iron atom and 6 oxygen atoms form an octahedral coordination sphere, described as FeO 6, with the Fe ion at the center. The phosphate

Einsteinium (7,959 words) [view diff] exact match in snippet view article find links to article

Wester, D.; Williams, C. (1983). "5f state interaction with inner coordination sphere ligands: Es3+ ion fluorescence in aqueous and organic phases". Journal

Bruno Chaudret (775 words) [view diff] exact match in snippet view article find links to article

these species, in particular the quantum exchange of protons in the coordination sphere of transition metals. Chaudret developed a method for synthesizing

Aldehyde ferredoxin oxidoreductase (1,560 words) [view diff] exact match in snippet view article find links to article

which is also bound by Asn93 and Ala183 to complete its octahedral coordination sphere. Thus, pterin and Tungsten atoms are connected to the AOR enzyme

Transition metal hydroxide complexes (660 words) [view diff] exact match in snippet view article find links to article

[Zr2(OH)8(mu−OH)2]2−. Many complexes are known where hydroxide shares the coordination sphere with other ligands. One pair of such complexes are {[Co(NH3)3]2(mu-OH)3}3+

Thorium compounds (4,189 words) [view diff] exact match in snippet view article find links to article

Th4+ is (10.8 ± 0.5), the effective charge is 3.82 and the second coordination sphere contains 13.4 water molecules. The Th4+ ion is relatively large and

Atom transfer radical polymerization (4,289 words) [view diff] exact match in snippet view article find links to article

metal center needs to have reasonable affinity for halogens The coordination sphere of the metal needs to be expandable when it is oxidized as to accommodate

Transition metal chloride complex (3,492 words) [view diff] exact match in snippet view article find links to article

Formula of hydrated metal halides Coordination sphere of the metal TiCl3(H2O)6 trans-[TiCl2(H2O)4]+ VCl3(H2O)6 trans-[VCl2(H2O)4]+ CrCl3(H2O)6 trans-[CrCl2(H2O)4]+

Polysilazane (2,479 words) [view diff] exact match in snippet view article find links to article

describes the chemical composition and the connectivity of the atoms (coordination sphere) it does not illustrate the macro-molecular structure. In polysilazanes

Tutton's salt (2,983 words) [view diff] exact match in snippet view article find links to article

462 1.472 biaxial (+) medium density=2.025g/cm3; expanded second coordination sphere around Mg. Rb Mg Rb2[Mg(H2O)6](SO4)2 rubidium magnesium sulphate

Force field (chemistry) (9,964 words) [view diff] exact match in snippet view article

analogs. LFMM (Ligand Field Molecular Mechanics) - functions for the coordination sphere around transition metals based on the angular overlap model (AOM)

Transition metal sulfate complex (826 words) [view diff] exact match in snippet view article find links to article

complexes is solvolysis, i.e. displacement of sulfate from the first coordination sphere by polar solvents such as water. Sulfato complexes are susceptible

Metal-ligand cooperativity (2,601 words) [view diff] exact match in snippet view article find links to article

considered to be involved in MLC while acting only in the second coordination sphere (not directly bound to the metal) but acting as a proton shuttle

Isaac B. Bersuker (4,580 words) [view diff] exact match in snippet view article find links to article

; Melnik, M.; Serator, M.; Valach, F. (1976). "Plasticity of the coordination sphere of copper(II) complexes, its manifestation and causes". Coordination

Bismuth organometallic chemistry (1,573 words) [view diff] exact match in snippet view article find links to article

cyclopentadienyl and to carbon monoxide ligands only having 17 electron in its coordination sphere in the absence of the Bi bond. Adding to this, Huttner et al. described

Magnesium(I) dimer (2,795 words) [view diff] exact match in snippet view article

complexes: effect of ligand backbone on metal oxidation state and coordination sphere". New Journal of Chemistry. 32 (5): 835–842. doi:10.1039/B718799H

Metal tetranorbornyl (1,879 words) [view diff] exact match in snippet view article find links to article

accessible to be penetrated by small reagents due to the metal center's coordination sphere. Tetrakis(1-norbornyl)cobalt(IV) is a thermally stable homoleptic

Advanced reprocessing of spent nuclear fuel (4,962 words) [view diff] exact match in snippet view article find links to article

and the number of water molecules potentially present in the inner coordination sphere of the metal ions. Fluorescence spectra can be also obtained at increasing

Transition metal dichalcogenide monolayers (10,542 words) [view diff] exact match in snippet view article find links to article

covalently bonded to six selenium ligands in a trigonal prismatic coordination sphere, while each selenium is bonded to three tungsten atoms in a pyramidal

Molybdenum imido alkylidene complex (3,125 words) [view diff] exact match in snippet view article find links to article

or phenanthroline. This protective Lewis base is removed from the coordination sphere by treating the adduct with a Lewis acid such as ZnCl₂·dioxane to

Pentacarbonyl(tetrahydrofuran)tungsten (3,002 words) [view diff] case mismatch in snippet view article

(2012-02-01). "Stabilization of Low Valent Silicon Fluorides in the Coordination Sphere of Transition Metals". Journal of the American Chemical Society.

Organotungsten chemistry (6,130 words) [view diff] case mismatch in snippet view article find links to article

(1998-05-01). "Mechanism of the Acetylene−Vinylidene Rearrangement in the Coordination Sphere of a Transition Metal1". Organometallics. 17 (10): 2089–2095. doi:10