Electrostatic repulsion between the cations of (1-methyl-1H-imidazole-κN 3)(2,2′:6′,2′′-terpyridine-κ3 N,N′,N′′)platinum(II) perchlorate nitromethane monosolvate prevents Pt⋯Pt interactions
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چکیده
The reaction between [Pt(terpy)Cl]·2H(2)O (terpy = 2',2'':6',2''-terpyridine) and 1-methyl-imidazole (MIm) in the presence of two equivalents of AgClO(4) in nitro-methane yields the title compound, [Pt(C(15)H(11)N(3))(C(4)H(6)N(2))](ClO(4))(2)·CH(3)NO(2). The dicationic complexes are arranged in a staggered configuration. The torsion angle subtended by the 1-methyl-imidazole ring relative to the terpyridine ring is 114.9 (5)°. Inter-molecular C-H⋯O inter-actions between the perchlorate anions and the H atoms of the terpy ligand are observed. Consideration of related phenyl-bipyridyl complexes of platinum(II), which are monocationic, leads to the conclusion that the electrostatic repulsion between the dicationic chelates prevents the formation of Pt⋯Pt inter-actions. These inter-actions are a common feature associated with the monocationic species.
منابع مشابه
{4′-[4-(4,4′-Bipyridin-1-ylmethyl)phenyl]-2,2′:6′,2′′-terpyridine}chloridoplatinum(II) bis(perchlorate) acetonitrile disolvate sesquihydrate
The asymmetric unit of the title compound, [PtCl(C(32)H(24)N(5))](ClO(4))(2)·2CH(3)CN·1.5H(2)O, comprises two unique Pt(II) complex cations, four perchlorate anions, four acetonitrile solvent mol-ecules and three water mol-ecules. The Pt atom is four-coordinated by a tridentate chelating 2,2':6',2''-terpyridine ligand and a chloride ion in a square-planar geometry with modest distortion imposed...
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The title compound, {[PtYb(CN)(4)(NO(3))(C(15)H(11)N(3))(H(2)O)(2)]·CH(3)CN}(n), was isolated from solution as a one-dimensional coordination polymer. The Yb(3+) site has ninefold coordination with a distorted tricapped trigonal-prismatic geometry, while the Pt(II) ion is coordinated by four cyanide groups in an almost regular square-planar geometry. cis-Bridging by the tetra-cyanidoplatinate(I...
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The title compound, {[NdPt(CN)(4)(NO(3))(C(15)H(11)N(3))(H(2)O)(2)]·CH(3)CN·0.5C(15)H(11)N(3)}(n), was isolated from solution as a one-dimensional coordination polymer. The Nd(3+) site in the structure has a ninefold coordination with a distorted tricapped trigonal-prismatic geometry, while the Pt(II) ion is coordinated by four cyanide groups in an almost regular square-planar geometry. Cis-bri...
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In the title compound, [PtCl(C(27)H(35)N(3))]Cl·C(7)H(8), the Pt(II) atom is coordinated in a pseudo-square-planar fashion by the N atoms of a 4,4',4''-tri-tert-butyl-2,2':6',2''-terpyridine (tbtrpy) ligand and a Cl atom. The Pt-N distance of the N atom on the central pyridine is 1.941 (4) Å, while the peripheral N atoms have Pt-N distances of 2.015 (4) and 2.013 (4) Å. The Pt-Cl bond distance ...
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The title compound, [Pt(2)(C(16)H(11)N(2))(2)(C(18)H(17)N(2)P)](ClO(4))(2), contains two Pt(II) atoms, bridged by an N-[(diphenyl-phosphino)meth-yl]pyridin-2-amine (dppmp) ligand. One Pt atom is coordinated by one P atom from the dppmp ligand, and one C atom and two N atoms from a 6-phenyl-2,2'-bipyridine (pbpy) ligand in a square-planar geometry. The other Pt atom is coordinated by one N atom ...
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