Two Different Compounds Formed from Copper(II) tetrafluoridoborate and [1,2,4]triazolo[1,5-a]pyrimidine. Synthesis,Spectroscopy and Single-Crystal Structures |
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| Authors: | Eelke D. van den Bos Ilpo Mutikainen Urho Turpeinen Gerard A. van Albada Jaap G. Haasnoot Jan Reedijk |
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| Affiliation: | (1) Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands;(2) Laboratory of Inorganic Chemistry, Department of Chemistry, University of Helsinki, (A.I. Virtasen aukio 1), P.O. Box 55, 00014 Helsinki, Finland; |
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| Abstract: | Abstract Two coordination compounds copper(II) with tetrafluoridoborate as the anion and [1,2,4]triazolo[1,5-a]pyrimidine (abbreviated as tp) as the ligand are presented, together with their crystal structure and spectroscopic properties. A light blue compound [Cu(tp)4(H2O)2](BF4)2(CH3OH) (1) with a tetragonal chromophore and a dark blue compound [Cu(tp)5](BF4)2(CH3OH) (2) are formed from the same batch. Compound (2) has a quite unusual geometry for Cu(II) with just 5 tp ligands, homoleptically coordinated to the metal ion. Both compounds show interesting hydrogen-bond interactions in the solid state, where coordinated water is intramolecularly bound to non-coordinated N atoms of tp (in 1), and methanol is attached to the anion (in 2). |
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