Novel crystal structure of a tetranuclear platinum complex: bis(.mu.4-carbonato-O,O,O',O')-tetrakis(diammineplatinum(II)) tetranitrate trihydrate

Mahtani, H.K.; Chang, Shih-Chi; Ruble, J. R.; Black, Isobel; Stein, Paul

doi:10.1021/ic00074a053

Cited by 20 publications

(7 citation statements)

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“…The carbonate anion is acting in a μ 4 -η 2 :η 2 -O,O fashion: one oxygen atom bridges the two metal centers of 3a (Ni11, Ni12), the second one, the two nickel ions of the other dinuclear cation 3b (Ni21, Ni22), whereas the third oxygen atom remains uncoordinated. This coordination mode of the carbonate ligand is quite unusual, and to the best of our knowledge, it has only been described for two previous related complexes, , none of them with first-row transition metals.…”

Section: Description Of the Crystal Structuresmentioning

confidence: 73%

Self-Assembly of a Tetranuclear Ni₄Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ₄-η²:η²-O,O Carbonate Ligand

et al. 2005

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Reaction of nickel(II) acetate with H(3)L (2-(5-bromo-2-hydroxyphenyl)-1,3-bis[4-(5-bromo-2-hydroxyphenyl)-3-azabut-3-enyl]-1,3-imidazolidine) yields [Ni(2)L(OAc)(H(2)O)(2)].3MeCN.2H(2)O (1.3MeCN.2H(2)O), crystallographically characterized. 1 is unstable in solution for a long time and hydrolyzes to give [Ni(2)L(o-OC(6)H(3)BrCHO)(H(2)O)].2.25MeCN.H(2)O (2.2.25MeCN.H(2)O). In addition, 1 uptakes CO(2) from air in a basic methanol/acetonitrile solution, yielding [[Ni(2)L(MeOH)](2)(CO(3))].1.5MeOH.MeCN.H(2)O (3.1.5MeOH.MeCN.H(2)O). The X-ray characterization of 3 reveals that it is a tetranuclear nickel cluster, which can be considered as the result of a self-assembly process from two dinuclear [Ni(2)L](+) blocks, joined by a mu(4)-eta(2):eta(2)-O,O carbonate ligand. The coordination mode of the carbonate anion is highly unusual and, to the best of our knowledge, it has not been described thus far for first-row transition metal complexes or magnetically studied until now. Magnetic characterization of 1 and 3 shows net intramolecular ferromagnetic coupling between the metal atoms in both cases, with S = 2 and S = 4 ground states for 1 and 3, respectively.

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Section: Description Of the Crystal Structuresmentioning

confidence: 73%

Self-Assembly of a Tetranuclear Ni₄Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ₄-η²:η²-O,O Carbonate Ligand

et al. 2005

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“…Thus, the distance Pt–N(24) = 2.256(6) Å ( trans to carbon) is longer than Pt–N(11) = 2.028(7) Å ( trans to oxygen). Carbonate complexes of platinum(II) are important in the bioinorganic chemistry of platinum drugs such as cisplatin and also as synthetic intermediates. , Structures have been determined for several phosphine and diphosphine complexes of formula [Pt(CO 3 )L 2 ] and for one polynuclear ammine derivative [{ cis -Pt(NH 3 ) 2 } 4 (μ 4 -CO 3 ) 2 ] 4+ . , However complex 3 appears to be the first carbonate derivative of platinum(IV) to be structurally characterized.…”

Section: Resultsmentioning

confidence: 99%

The Chemistry of [PtMe₂(1,2-bis(2-pyridyl)ethane)]: Remarkable Impact of an Easily Dissociated Chelate Ligand

2011

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The title compound [PtMe2(bpe)], 1, bpe = 1,2-bis(2-pyridyl)ethane, is easily oxidized to give octahedral organoplatinum(IV) complexes, and the subsequent chemistry is profoundly influenced by the accompanying strain induced in the seven-membered Pt(bpe) chelate ring. In reactions with bromine or iodine, X2, the platinum(IV) complexes [PtX2Me2(bpe)] are formed initially, but they decompose primarily by reductive elimination of MeX to give ultimately the platinum(II) complexes [PtX2(bpe)]. When X = I, a minor reaction occurred to give the first example of metalation of a CH2 group of the bpe ligand. On reaction of 1 with HCl, the initial product [PtHClMe2(bpe)] undergoes reductive elimination of methane to form [PtClMe(bpe)]. In contrast, methyl iodide reacts with 1 to give [PtIMe3(bpe)], and this decomposes by loss of the bpe ligand to give the cubane [(PtIMe3)4] and not by reductive elimination. Finally, a new class of platinum(IV) double cubane clusters was obtained on oxidation of complex 1 either with hydrogen peroxide to give [Pt4(μ-OH)4(μ3-OH)2Me10], as a mixed complex with [PtMe2(CO3)(bpe)], or with oxygen in methanol to give [Pt4(μ-OH)2(μ-OMe)2(μ3-OMe)2Me10].

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“…Based on the Inorganic Crystal Structure Database (ICSD), there are six examples where CO 3 and NO 3 π-conjugated anionic groups coexist in one structure. Except for the [Pb 6 O 4 ](OH)(NO 3 )(CO 3 ) 46 compound, other compounds are transition metal (Pt or Co) amine complexes ((Pt(NH 3 ) 2 ) 4 (CO 3 ) 2 )(NO 3 ) 4 ·(H 2 O) 3 , 47 (Co(NH 3 ) 4 (CO 3 )(NO 3 )) 2 ·H 2 O, 48 (Co(CO 3 )(NH 3 ) 4 )(NO 3 ), 49 (Co(NH 3 ) 4 CO 3 )(NO 3 )·(H 2 O) 0.5 50 and (Co(NH 3 ) 5 (CO 3 ))(NO 3 )·H 2 O. 51 In this work, we combine two types of π-conjugated anionic groups and a halogen anion in one compound.…”

Section: Introductionmentioning

confidence: 99%

Large optical anisotropy-oriented construction of a carbonate-nitrate chloride compound as a potential ultraviolet birefringent material

et al. 2022

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Novel crystal structure of a tetranuclear platinum complex: bis(.mu.4-carbonato-O,O,O',O')-tetrakis(diammineplatinum(II)) tetranitrate trihydrate

Cited by 20 publications

References 0 publications

Self-Assembly of a Tetranuclear Ni₄Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ₄-η²:η²-O,O Carbonate Ligand

Self-Assembly of a Tetranuclear Ni₄Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ₄-η²:η²-O,O Carbonate Ligand

The Chemistry of [PtMe₂(1,2-bis(2-pyridyl)ethane)]: Remarkable Impact of an Easily Dissociated Chelate Ligand

Large optical anisotropy-oriented construction of a carbonate-nitrate chloride compound as a potential ultraviolet birefringent material

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Novel crystal structure of a tetranuclear platinum complex: bis(.mu.4-carbonato-O,O,O',O')-tetrakis(diammineplatinum(II)) tetranitrate trihydrate

Cited by 20 publications

References 0 publications

Self-Assembly of a Tetranuclear Ni4Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ4-η2:η2-O,O Carbonate Ligand

Self-Assembly of a Tetranuclear Ni4Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ4-η2:η2-O,O Carbonate Ligand

The Chemistry of [PtMe2(1,2-bis(2-pyridyl)ethane)]: Remarkable Impact of an Easily Dissociated Chelate Ligand

Large optical anisotropy-oriented construction of a carbonate-nitrate chloride compound as a potential ultraviolet birefringent material

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Self-Assembly of a Tetranuclear Ni₄Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ₄-η²:η²-O,O Carbonate Ligand

Self-Assembly of a Tetranuclear Ni₄Cluster with anS= 4 Ground State: The First 3d Metal Cluster Bearing a μ₄-η²:η²-O,O Carbonate Ligand

The Chemistry of [PtMe₂(1,2-bis(2-pyridyl)ethane)]: Remarkable Impact of an Easily Dissociated Chelate Ligand