Hetero-metallic frameworks of [Pd(CN)4] and Cu(II) with triamines: A rare example of a tetracyanometallate bridged 2D coordination polymer |
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| Authors: | Subal Chandra Manna Joan Ribas Ennio Zangrando Nirmalendu Ray Chaudhuri |
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| Institution: | 1. Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, Kolkata 700 032, India;2. Departament de Química Inorgànica, Universitat de Barcelona, Diagonal, 647, 08028 Barcelona, Spain;3. Dipartimento di Scienze Chimiche, University of Trieste, 34127 Trieste, Italy |
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| Abstract: | Four cyano bridged Cu(II)–Pd(II) heterometallic complexes, Cu(dpt)Pd(CN)4]n (1), {Cu2(medpt)2Pd(CN)4](ClO4)2 · 3H2O}n (2), {Cu2(dien)2Pd(CN)4](ClO4)2 · 2CH3OH}n (3) and {Cu2(iPrdien)2Pd(CN)4](ClO4)2 · 2H2O}n (4) dpt = 3,3′-iminobispropylamine; medpt = 3,3′-diamino-N-methyldipropylamine; dien = diethylenetriamine and iprdien = N′-isopropyldiethylenetriamine] have been synthesized and characterized by single crystal X-ray diffraction analysis, magnetic measurement and thermal study. Complexes 1, 2 and 3 are 1D coordination polymers, while 4 presents a 2D network. In 1, the cis-directed cyanide ligands of Pd(CN)4]2− anions link two Cu(dpt) units to form a neutral coordination polymer, whereas in 2, 3 and 4, all the cyanide groups of Pd(CN)4]2− take part in bonding with four adjacent Cu(II) ions, resulting in cationic coordination polymers counterbalanced by perchlorate anions. The structures are compared with those of analogous Ni(CN)4]2− derivatives. The magnetic behavior shows antiferromagnetic interactions in all the complexes. |
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| Keywords: | Cu(II) Tetracyanopalladate Triamine Crystal structure Magnetic behavior |
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