New Linear Coordination Polymers Based on Copper(I) and 4,7-Phenanthroline: Structure Dependence on Solvent and Counteranion
Autor: | Susan Lopez, Steven W. Keller |
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Rok vydání: | 1999 |
Předmět: | |
Zdroj: | Inorganic Chemistry. 38:1883-1888 |
ISSN: | 1520-510X 0020-1669 |
DOI: | 10.1021/ic980800z |
Popis: | Three new linear coordination polymers containing Cu(I) and 4,7-phenanthroline (phen) have been synthesized and structurally characterized by single-crystal X-ray diffraction. [Cu(phen)(MeCN)(2)]PF(6) (3) and [Cu(phen)(MeCN)]BF(4) (4) are prepared from acetonitrile, and [Cu(phen)(BzCN)]BF(4) (5) is made from benzonitrile (MeCN = acetonitrile; BzCN = benzonitrile). All of the compounds have linear polymeric structures containing Cu(I) centers coordinated by two bridging 4,7-phenanthroline ligands, with additional coordinated solvent molecules completing the copper coordination sphere. In 3 and 4, when acetonitrile is used, two and one MeCN solvent molecules coordinate to each Cu atom, resulting in a distorted tetrahedral and distorted trigonal geometry, respectively. The major interchain interactions are phenanthroline pi-pi stacks. When benzonitrile is used in 5, the chain-packing motif changes to allow the coordinated benzonitrile ligands to participate in the interchain pi-pi stacking. Crystal data: for [Cu(phen)(MeCN)(2)]PF(6) (3), monoclinic, space group P2(1)/c (No. 14), with a = 11.4303(6) Å, b = 11.4954(6) Å, c = 14.0444(7) Å, beta = 99.948(1) degrees, and Z = 4; for [Cu(phen)(MeCN)]BF(4) (4), monoclinic, space group P2(1)/c (No. 14), with a = 8.7677(5) Å, b = 11.5140(7) Å, c = 14.8858(9) Å, beta = 96.548(1) degrees, and Z = 4; for [Cu(phen)(BzCN)](2)2BF(4) (5), triclinic, space group Ponemacr; (No. 2), with a = 11.338(1) Å, b = 12.461(1) Å, c = 13.904(1) Å, alpha = 115.909(2) degrees, beta = 100.870(2) degrees, gamma = 92.052(2) degrees, and Z = 2. |
Databáze: | OpenAIRE |
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