abstract
Four alkaline earth metal-based compounds were synthesized under hydrothermal conditions, using BPTC (benzophenone-3,3 ',4,4 '-tetracarboxylate) as ligand, and are hereinafter referred to as M-BPTC (M = Mg, Ca, Sr, Ba). These compounds exhibit interesting structural diversity, variable chemical and thermal stability, as well as antimicrobial activity and proton conductivity. The Ca-BPTC (C17H13O12Ca) belongs to the triclinic crystal system, P-1 space group (a = 6.9330 & Aring;, b = 9.8359 & Aring;, c = 14.8717 & Aring;, alpha = 78.351 degrees, beta = 81.043 degrees, gamma = 71.696 degrees). The Sr-BPTC (C17H10O11Sr2) crystallized into an orthorhombic crystal system, Pbca space group (a = 6.9945 & Aring;, b = 10.3767 & Aring;, c = 47.882 & Aring; and alpha = beta = gamma = 90 degrees) and showed proton conduction up to 55 degrees C. The compound Ba-BPTC (C17H8O10Ba2) belongs to the triclinic crystal system, P-1 space group (a = 4.39030 & Aring;, b = 11.9969 & Aring;, c = 16.0108 & Aring;, alpha = 71.6830 degrees, beta = 86.2360 degrees, gamma = 89.790 degrees). The crystal structure of the compound of Mg2+ with BPTC was not elucidated. The calcium coordination polymer and magnesium compound showed antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa and antifungal activity against Candida albicans.
keywords
ORGANIC FRAMEWORKS; THERMAL-DECOMPOSITION; DRUG-DELIVERY; WATER
subject category
Polymer Science
authors
Poruczinski, EF; Welzel, DJ; Grigolo, TA; dos Santos, MN; Willig, JCM; Wiggers, HJ; Wiggers, JC; Brandao, P; de Campos, SD; de Campos, EA
our authors
Paula Cristina Ferreira da Silva Brandão
Assistant Researcheracknowledgements
Erica F. Poruczinski gratefully acknowledges to Araucaria Foundation for Scientific and Technological Development of Parana State for the scholarship. We are grateful to Helenir N. Ballin for the Graphical Abstract.