Abstract
A new 4,4′-bipyridyl-based 'building block', 1,2-bis(4-pyridylmethyl)disulfenyl (bpms) was synthesized. Treatment of the 'building block' with Co(NO3)2 and KSCN afforded a new type of one-dimensional (1-D) double zigzag chain coordination polymer [Co(NCS)2(bpms)2]n. Each Co ion is symmetrically bridged by four bpms ligands and also coordinates with two NCS- anions. The [Co(NCS)2(bpms)2]n can be regarded as a layered structure in the solid state. The 1-D parallel chains are stacked ABAB with a rotation of 90° between A and B. [Co(NCS)2(bpms)2]n in DMF solution also shows very strong third-order nonlinear optical (NLO) properties, its third-order susceptibility χ(3) is 1.07 × 10-11 esu in a 2.8 × 10-3g cm-3 DMF solution. The data are comparable to those of C60, phthalocyanine derivations and inorganic clusters. To our knowledge, this is the first reported coordination polymer showing strong third-order NLO properties.
| Original language | English |
|---|---|
| Pages (from-to) | 140-144 |
| Number of pages | 5 |
| Journal | Inorganica Chimica Acta |
| Volume | 316 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - 7 May 2001 |
Keywords
- Cobalt complexes
- Coordination polymer complexes
- Crystal structure
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