Metal chemical compound with all ligands identical
In inorganic chemistry, a homoleptic chemical compound is a metal compound with all ligands identical.[1] The term uses the "homo-" prefix to indicate that something is the same for all. Any metal species which has more than one type of ligand is heteroleptic.
Some compounds with names that suggest that they are homoleptic are in fact heteroleptic, because they have ligands in them which are not featured in the name. For instance dialkyl magnesium complexes, which are found in the equilibrium which exists in a solution of a Grignard reagent in an ether, have two ether ligands attached to each magnesium centre. Another example is a solution of trimethyl aluminium in an ether solvent (such as THF); similar chemistry should be expected for a triaryl or trialkyl borane.
It is possible for some ligands such as DMSO to bind with two or more different coordination modes. It would still be reasonable to consider a complex which has only one type of ligand but with different coordination modes to be homoleptic. For example, the complex dichlorotetrakis(dimethyl sulfoxide)ruthenium(II) features DMSO coordinating via both sulfur and oxygen atoms (though this is not homoleptic since there are also chloride ligands).
^IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "homoleptic". doi:10.1351/goldbook.H02850
In inorganic chemistry, a homoleptic chemical compound is a metal compound with all ligands identical. The term uses the "homo-" prefix to indicate that...
angle is usually close to 100°. Crystal structure of [NiII(NCS)6]4-, a homoleptic complex of six isothiocyanate ligands. Color code: blue = N, yellow =...
Homoleptic tetra-mesityl complexes of transition metals in the +4 oxidation state, (IV), denoted as M(mes)4, constitute a category of organometallic substances...
Homoleptic azido compounds are chemical compounds in which the only anion or ligand is the azide group, -N3. The breadth of homoleptic azide compounds...
chromium(0) organometallic compound with the formula Cr(CO)6. It is a homoleptic complex, which means that all the ligands are identical. It is a colorless...
Metal nitrosyl complexes are complexes that contain nitric oxide, NO, bonded to a transition metal. Many kinds of nitrosyl complexes are known, which vary...
complex in the otherwise uncommon +4 oxidation state of cobalt is the homoleptic complex tetrakis(1-norbornyl)cobalt(IV) (Co(1-norb)4), a transition metal-alkyl...
trihydrogen tetrafluoride of the composition Ba(H3F4)2: The first example of homoleptic HF metal environment". Solid State Sciences. 8 (8): 927–931. Bibcode:2006SSSci...
common is the motif M-N=N=N-M, illustrated by [Cu(N3)(PPh3)2]2. Many homoleptic complexes (with only one kind of ligand) are known. Coordination numbers...
metal atom or bridging to two or more metal atoms. These complexes may be homoleptic, containing only CO ligands, such as nickel tetracarbonyl (Ni(CO)4), but...
traps, water baths, waste pipes), and thus lead to violent explosions. Homoleptic azido compounds Pentazenium Pentazolate (cyclo-N−5) S. Bräse; C. Gil;...
possibilities increase when the amino acid ligands are not homochiral. Homoleptic complexes are also known where the amino carboxylate is tridentate amino...
polytetrahydrofuran is produced. Ethers are relatively bulky ligands, thus homoleptic (i.e., all ligands being the same) ether complexes are uncommon. Examples...
chemistry. This article focuses on complexes where water is the only ligand ("homoleptic aquo complexes"), but of course many complexes are known to consist of...
focused on the homoleptic complexes. Indeed, the first reported example of a complex containing a metal-sp3 carbon bond was the homoleptic complex diethylzinc...
ferrioxalate (K3[Fe(C2O4)3]·3H2O) Oxaliplatin, an anticancer drug [Zr(ox)4]4- Homoleptic oxalato complexes are common, e.g., those with the formula [M(κ2-C2O4)3]n-:...
[FeH6]4− are examples from the growing collection of known molecular homoleptic metal hydrides. As pseudohalides, hydride ligands are capable of bonding...
splitting energy, the homoleptic halide complexes of the first transition series are all high spin. Only [CrCl6]3− is exchange inert. Homoleptic metal halide complexes...
variety of homoleptic nitrido complexes and ternary salts, with oxidation states ranging from Mn+ to Mn+6.5; indeed, the stablest homoleptic complex is...
which are typically abbreviated R2dtc−. Many complexes are known. Several homoleptic derivatives have the formula M(R2dtc)n where n = 2 and 3. Dithiocarbamates...
are the basic metal acetates, of the stoichiometry [M3O(OAc)6(H2O)3]n+. Homoleptic carboxylate complexes are usually coordination polymers. But exceptions...
common dyestuff. Homoleptic cyanometallates are complexes where the only ligand is cyanide. For transition metals, well known homoleptic cyanometallates...
ethylenediamine analogue carbonatobis(ethylenediamine)cobalt(III). Few homoleptic carbonato complexes have been characterized. One is [Zr(CO3)4]4-, featuring...
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