Halogenometallate von Übergangselementen mit Kationen stickstoffhaltiger heterocyclischer Basen. I. Die Kristallstrukturen von 1,4-Dimethylpiperazinium-tetrachlorocobaltat(II) und -zinkat(II), (dmpipzH2)[MIICl4] (M = Co,Zn) |
| |
Authors: | Michael Feist Sergej Trojanov Erhard Kemnitz |
| |
Abstract: | Halogenometalates of Transition Elements with N-heterocyclic Base Cations. I. The Crystal Structures of 1,4-Dimethylpiperazinium Tetrachlorocobaltate(II) and -zincate(II), (dmpipzH2)MIICl4] (M = Co, Zn) The compounds (dmpipzH2)MIICl4] crystallize in the monoclinic space group P21/m with a = 6.133(1), b = 14.306(1), c = 6.902(1) Å, β = 90.54(2)°, Z = 2 for M = Co and with a = 6.141(1), b = 14.282(1), c = 6.907(1) Å, β = 90.60(2)°, Z = 2 for M = Zn. The structures consist of tetrahedra MCl4]2? and centrosymmetric cations (dmpipzH2)2+ in the chair form. Bifurcated hydrogen bridging bonds of the N? H …? Cl type connect the nitrogen atom to two chloride ions. Two short distances C …? Cl are interpreted in terms of C? H …?Cl hydrogen bridges. |
| |
Keywords: | 1 4-Dimethylpiperazinium-tetrachlorometalates(II) cobalt zinc crystal structures |
|
|