Details

Autor(en) / Beteiligte

• Zheng, Sheng-Run
• Chen, Rui-Ling
• Xie, Tao
• Liu, Zi-Meng
• Wen, Xi-Ling
• Chen, Xue-Yun
• Fan, Jun
• Zhang, Wei-Guang

Titel

Construction of several new s-/p-block complexes containing binuclear metal-terpyridine building blocks: dependence of structural diversity on the number of coordinated water moleculesElectronic supplementary information (ESI) available: Additional structure figures, the table of selected bonds and angles. CCDC 958305-958309. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c3ce41790e

Erscheinungsjahr

2014-04

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Five new coordination polymers, [Mg(DSPT)(H 2 O) 2 ]·2H 2 O (H 2 DSPT = 4′-(2,4-disulfophenyl)-2,2′:6′2′′-terpyridine) ( 1 ), {[Ca(DSPT)(H 2 O) 2 ]·1.5H 2 O} n ( 2 ), {[Pb(DSPT)(H 2 O)]·2H 2 O} n ( 3 ), {[Pb(DSPT)]·0.5H 2 O} n ( 4 ), and {[Pb 3 (DSPT) 3 (H 2 O)]·8H 2 O} n ( 5 ), were prepared under hydrothermal conditions. They are all complexes containing similar M 2 L 2 binuclear metal-terpyridine building units. Complex 1 is a discrete binuclear molecule that extends to 2D layers via O-H O hydrogen bonds between coordinated water and a sulfo group on H 2 DSPT. Complexes 2 and 3 are 1D coordination chains based on [M 2 (DSPT) 2 ] ring subunits but are connected by different M-O bonds, and the 1D chains are also further connected by O-H O hydrogen bonds between coordinated water and a sulfo group on H 2 DSPT to a 2D layer. Complex 4 exhibits a 2D coordination network also based on the [M 2 (DSPT) 2 ] ring subunits. Complex 5 is a by-product of the synthesis of complex 4 that displays a 1D coordination chain structure containing the same [M 2 (DSPT) 2 ] ring subunits. Interestingly, the 2D layers described above show identical skeletons when the bond types between [M 2 (DSPT) 2 ] ring subunits are neglected. The 2D layers in complexes 1-3 can be derived from replacing selected coordination bonds in complex 4 with hydrogen bonds, and such structural diversity is largely dependent on the number of coordinated water molecules around the metal center. Thermogravimetric analyses of 1-4 showed that they were stable at temperatures higher than 500 °C. The luminescent properties of complexes 1-4 were also investigated. Five new s-/p-block complexes based on a terpyridine-based ligand containing sulfo groups were obtained.