Syntheses, Characterization and X-ray Structure of Potassium Hydrotris(2- Mercaptothiazolyl)Borate, KMt, and Potassium Hydrotris(Methimazole)Borate, KTm
نویسندگان
چکیده
Os compostos hidrotris(2-mercaptotiazolil)borato de potássio, KMt, (1), e hidrotris(2metimazolil)borato de potássio, KTm, (2), foram preparados ao se reagir a amina tiol correspondente com KBH 4 . Foram caracterizados por métodos espectroscópicos e análise elementar. As estruturas no estado sólido de KMt.4H 2 O e do composto 2 foram determinadas por análises de difração de raios-X. A maior maciez do ânion em KMt.4H 2 O, em comparação com 2, é indicada pela ausência de interação entre ele e o cátion, que possui moléculas de água em sua esfera de coordenação. Em KMt.4H 2 O a geometria em torno do íon potássio é octaédrica distorcida e em 2, pirâmide de base quadrada distorcida. Em 2 o íon potássio está coordenado a dois átomos de enxofre dos anéis de um mesmo ânion e a três outros átomos de enxofre pertencentes a unidades KTm vizinhas. Ambos os compostos possuem uma estrutura polimérica.
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