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Synthesis, crystal structure and topological analysis of a three‐dimensional polymeric network based on zinc(II), potassium and 5‐sulfobenzene‐1,3‐dicarboxylate (SIP)
Author(s) -
Silva Flávia H.,
Franco Chris H. J.,
Corrêa Charlane C.,
Diniz Renata
Publication year - 2018
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229618010264
Subject(s) - zinc , crystallography , monoclinic crystal system , chemistry , carboxylate , crystal structure , infrared spectroscopy , potassium , bioinformatics , topology (electrical circuits) , stereochemistry , mathematics , organic chemistry , combinatorics , biology
Aromatic polycarboxylate linkers provide structural rigidity and strong interactions among the metal centre and the carboxylate O atoms. A new three‐dimensional coordination polymer namely, catena ‐poly[potassium [tetraaqua(μ‐5‐sulfobenzene‐1,3‐dicarboxylato)zinc(II)]], {K[Zn(C 8 H 3 O 7 S)(H 2 O) 4 ]} n or {K[Zn(SIP)(H 2 O) 4 ]} n , where SIP is 5‐sulfobenzene‐1,3‐dicarboxylate or 5‐sulfoisophthalate, was obtained and characterized by elemental analysis and IR vibrational spectroscopy, and the single‐crystal structure was determined by X‐ray diffraction analysis. The compound crystallizes in the monoclinic space group P 2 1 / n with Z = 4. Topological analysis revealed that K—O interactions form a two‐dimensional network, which is uninodal 4‐connected and can be described with a point symbol (4 4 .6 2 ), and this plane network is classified as sql/Shubnikov . The layers are connected by Zn 2+ ions coordinated to the SIP linker, forming a three‐dimensional network. This net is a trinodal (3,5,6)‐connected system with point symbol (3.4 4 .5 2 .6 2 .7 3 .8 3 ).(3.4 4 .5 2 .6 2 .7).(3.7 2 ).