In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2007, No. 13 ( 2007-05), p. 1854-1866
Abstract:
Two functional, flexible ligands, namely 3,6‐dipyrazolyl‐9‐ethylcarbazole ( L 1 ) and 3,6‐diimidazolyl‐9‐ethylcarbazole ( L 2 ) have been synthesized and characterized and their coordination to various Ag I , Cd II , and Co II salts investigated. Six new complexes, 1 – 6 , have been obtained and fully characterized by IR spectroscopy, elemental analysis, and single‐crystal X‐ray diffraction. The 2D double helix framework of the complex [CdL 1 I 2 ] n ( 1 ) is formed by C–H ··· I hydrogen bonds, whereas the same 2D double helix framework of compound [{AgL 1 SO 3 PhCH 3 } 2 (CH 3 OH)(H 2 O)] n ( 2 ) is formed by S–O ··· H and C–H ··· O hydrogen bonds and weak π–π interactions. The coordination modes of Cd II and Co II in [CdL 2 2 (NCS) 2 ] n ( 3 ), [CoL 2 2 (NCS) 2 (CHCl 3 ) 2 ] n ( 4 ), [CdL 2 2 (NO 3 ) 2 (CH 3 OH) 2 ] n ( 5 ), and [CoL 2 2 (NO 3 ) 2 (CH 3 OH) 2 ] n ( 6 ) are the same, but in the packing diagram interlayers form a 3D network through C–H ··· S interactions and π–π interactions in 3 , interlayers form a 3D network through S ··· S interactions and π–π interactions in 4 , novel 3D structures are formed by interchain O ··· H–C hydrogen bonding and interlayer O ··· H–C hydrogen‐bonding and π–π interactions in 5 and 6 . The structural differences between these complexes show the influence of the orientation of the coordinating group of the ligand. These results also show that the metal ion, anion, and nonbonding and π–π interactions are significant factors in controlling the structural topology of these metal‐organic supramolecular architectures. In addition, the luminescence properties of L 1 , 1 , L 2 , and 3 are investigated in the solid state at room temperature. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Type of Medium:
Online Resource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2007:13
DOI:
10.1002/ejic.200600887
Language:
English
Publisher:
Wiley
Publication Date:
2007
detail.hit.zdb_id:
1475009-0
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