An effectively diamagnetic oximato-bridged asymmetric dinuclear copper(II) complex with a Cu(II)I bond
In: Inorganica Chimica Acta, Jg. 232 (1995-04-01), S. 125-130
Online
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Zugriff:
A new bis(oximato)-bridged dinuclear copper(II) complex containing an axial Cu(II)I bond with the formula [LCu(PyA) 2 Cu(I)]ClO 4 ·CH 3 CN ( 1 ) (where L = 1,4,7-tritrimethyl-1,4,7-triazacyclononane; PyA = monoanion of pyridine-2-aldoxine) has been characterized by IR, UV-Vis, variable temperature (81–283 K) magnetic susceptibility measurements. 1 crystallizes in the monoclinic system space group P2 1 n , with cell constants a= 8.304(2), b = 27.410(7), c = 13.975(5) A β = 93.48(2)° V = 3175(2) A and Z = 4 . The structure consists of oximato-bridged CuIICuII(I) monocations and non-coordinated perchlorate anions. Both copper ions have a distorted square-pyramidal geometry with a Cu ⋯ Cu separation of 3.45 A and Cu(II)I bond length of 2.74 A. The copper centres are very strongly antiferromagnetically coupled, the singlet-triplet splitting being greater than 1000 cm−1.
Titel: |
An effectively diamagnetic oximato-bridged asymmetric dinuclear copper(II) complex with a Cu(II)I bond
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Autor/in / Beteiligte Person: | Chaudhuri, Phalguni ; Haupt, Hans-Jürgen ; Flörke, Ulrich ; Winter, Manuela |
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Zeitschrift: | Inorganica Chimica Acta, Jg. 232 (1995-04-01), S. 125-130 |
Veröffentlichung: | Elsevier BV, 1995 |
Medientyp: | unknown |
ISSN: | 0020-1693 (print) |
DOI: | 10.1016/0020-1693(94)04379-a |
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