Some tetrahalo- and mixed-tetrahalocuprates of the type(LH)2CuClmBr4-m and (LH2)CuCImBr4-m (m = 4, 3, 2, 1, 0; LH = N-methylpiperidinium cation; LH2 =N,N′-dimethylpiperazinium dication) were prepared and investigated by means of spectroscopic (u.v., vis, near i.r., far-i.r.), magnetic and e.p.r. measurements.The results indicate for all the complexes a distorted tetrahedral configuration, the complexes of the N,N′-dimethylpiperazinium dication being more distorted than those of the N-methytpiperidinium cation. A seriesbased on the hydrogen bonding ability of the counter cation, which takes into account counter cations as morpholinium, piperidinium and piperaziniumand some of their deriratives is also proposed.
Spectroscopic investigation on the tetrahalo- and mixed-tetrahalocuprates of the N-methyl-piperidinium and N,N'-dimethylpiperazinium cations / Marcotrigiano, Giuseppe Onofrio; Menabue, Ledi; Saladini, Monica; Pellacani, Gian Carlo. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - STAMPA. - 34:(1979), pp. 43-47. [10.1016/S0020-1693(00)94675-9]
Spectroscopic investigation on the tetrahalo- and mixed-tetrahalocuprates of the N-methyl-piperidinium and N,N'-dimethylpiperazinium cations
MARCOTRIGIANO, Giuseppe Onofrio;MENABUE, Ledi;SALADINI, Monica;PELLACANI, Gian Carlo
1979
Abstract
Some tetrahalo- and mixed-tetrahalocuprates of the type(LH)2CuClmBr4-m and (LH2)CuCImBr4-m (m = 4, 3, 2, 1, 0; LH = N-methylpiperidinium cation; LH2 =N,N′-dimethylpiperazinium dication) were prepared and investigated by means of spectroscopic (u.v., vis, near i.r., far-i.r.), magnetic and e.p.r. measurements.The results indicate for all the complexes a distorted tetrahedral configuration, the complexes of the N,N′-dimethylpiperazinium dication being more distorted than those of the N-methytpiperidinium cation. A seriesbased on the hydrogen bonding ability of the counter cation, which takes into account counter cations as morpholinium, piperidinium and piperaziniumand some of their deriratives is also proposed.
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