New Inorganic–Organic Coordination Polymers Generated from Rigid or Flexible Bidentate Ligands and Co(NCS)2·xH2O
✍ Scribed by Yu-Bin Dong; Mark D. Smith; Hans-Conrad zur Loye
- Book ID
- 102608679
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 463 KB
- Volume
- 155
- Category
- Article
- ISSN
- 0022-4596
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✦ Synopsis
The coordination chemistry of the long rigid bidentate Schi4base ligands 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene (L1), 2,5-bis(3-pyridyl)-3,4-diaza-2,4-hexadiene (L2), and of the 6exible ligand 1,3-bis(4-pyridyl)propane with Co(NCS) 2 ' xH 2 O has been investigated. Three new coordination polymers were prepared and fully characterized by infrared spectroscopy, elemental analysis, thermogravimetric analysis, and single-crystal X-ray di4raction. The magnetic behavior of all compounds was also investigated and found to follow the Curie law.
monoclinic, C 2/m; a ؍ 11.995(2) A > , b ؍ 14.596(3) A > , c ؍ 10.846(2) A > , ؍ 110.99(3)3, Z ؍ 2) features a two-dimensional non-interpenetrating distorted square pattern. [Co(NCS) 2 (L2) 2 ] n (2, monoclinic, P2 1 /n; a ؍ 9.5315(19) A > , b ؍ 17.299(4) A > , c ؍ 9.6646(19) A > , ؍ 99.11(3)3, Z ؍ 2) features a one-dimensional ring-like chain motif. Important C+H2S hydrogen bonding interactions exist in 2, which play a signi5cant role in aligning the polymer strands in the crystalline solid. [Co(1,3-bis(4-pyridyl)propane) 2 (NCS) 2 ' 0.33 H 2 O] n (3, monoclinic, P2 1 /n; a ؍ 18.701(4) A > , b ؍ 16.593(3) A > , c ؍ 20.696(4) A > , ؍ 114.45(3)3, Z ؍ 4) exhibits a polymeric pattern similar to that of 1. All three compounds feature similar { CoN 6 } pseudooctahedral coordination spheres.