Two different compounds formed from copper (II) tetrafluoridoborate and [1, 2, 4] triazolo [1, 5-a] pyrimidine. Synthesis, spectroscopy and single-crystal structures

ED van den Bos, I Mutikainen, U Turpeinen…

Index: Van Den Bos, Eelke D.; Mutikainen, Ilpo; Turpeinen, Urho; Van Albada, Gerard A.; Haasnoot, Jaap G.; Reedijk, Jan Journal of Chemical Crystallography, 2010 , vol. 40, # 8 p. 656 - 660

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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 (H 2 O) 2](BF 4) 2 (CH 3 OH)(1) with a tetragonal chromophore and a dark blue compound [Cu (tp) 5](BF 4) 2 (CH 3 OH)(2) are formed from the same batch. Compound (2) has a quite ...