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Synthesis, crystal structure and photoluminescence of a three‐dimensional zinc coordination compound with NBO‐type topology
Author(s) -
Liu Xi,
Fu Bo,
Li Lin,
Jian Yun-Fei,
Shu Si
Publication year - 2019
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/s205322961900189x
Subject(s) - natural bond orbital , zinc , photoluminescence , topology (electrical circuits) , crystal structure , crystallography , materials science , type (biology) , chemistry , metallurgy , molecule , mathematics , optoelectronics , organic chemistry , geology , combinatorics , paleontology
The assembly of metal–organic frameworks (MOFs) with metal ions and organic ligands is currently attracting considerable attention in crystal engineering and materials science due to their intriguing architectures and potential applications. A new three‐dimensional MOF, namely poly[[diaqua(μ 8 ‐ para ‐terphenyl‐3,3′,5,5′‐tetracarboxylato)dizinc(II)] dimethylformamide disolvate monohydrate], {[Zn 2 (C 22 H 10 O 8 )(H 2 O) 2 ]·2C 3 H 7 NO·H 2 O} n , was synthesized by the self‐assembly of Zn(NO 3 ) 2 ·6H 2 O and para ‐terphenyl‐3,3′,5,5′‐tetracarboxylic acid (H 4 TPTC) under solvothermal conditions. The compound was structurally characterized by FT–IR spectroscopy, elemental analysis and single‐crystal X‐ray diffraction analysis. Each Zn II ion is located in a square‐pyramidal geometry and is coordinated by four carboxylate O atoms from four different TPTC 4− ligands. Pairs of adjacent equivalent Zn II ions are bridged by four carboxylate groups, forming [Zn 2 (O 2 C R ) 4 ] ( R = terphenyl) paddle‐wheel units. One aqua ligand binds to each Zn II centre along the paddle‐wheel axis. Each [Zn 2 (O 2 C R ) 4 ] paddle wheel is further linked to four terphenyl connectors to give a three‐dimensional framework with NBO‐type topology. The thermal stability and solid‐state photoluminescence properties of the title compound have also been investigated.