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Syntheses of supramolecular CuCN complexes by decomposing CuSCN: a general route to CuCN coordination polymers?
Department of Chemistry, Shantou University, China.
Department of Chemistry, Shantou University, China.
Department of Chemistry, Shantou University, China.
Department of Chemistry, Shantou University, China.
2006 (English)In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, no 20, 2435-2443 p.Article in journal (Refereed) Published
Abstract [en]

The solvothermal reaction of CuSCN with 1,2-bis(diphenylphosphino)ethane (dppe) yielded a coordination polymer, which was characterized to be a complex of CuCN and 1,2-bis(diphenylthiophosphinyl)ethane (dppeS2): [(CuCN)2(dppeS2)]n (1). The identification of complex 1 reveals that CuSCN was decomposed and the sulfur was transferred to dppe, and represents a new example of the transformation of inorganic sulfur to organic sulfur. The weak coordination interactions between CuCN and dppeS2 indicate that dppeS2 may be substituted by ligands with strong coordination ability. The ligand 2,4,6-tris(2-pyridyl)-1,3,5-triazine (tpt) was chosen as a substitute ligand. Three novel CuCN coordination polymers of tpt were synthesized and characterized: [Cu2(CN)2(tpt)]n (2) with a 3-D (10,3)-a network, [Cu2(CN)2(tpt)]n (3) and [Cu2(SCN)(CN)(tpt)]n (4) both with a 2-D (6,3) network, and only complex 2 can be obtained from CuCN directly. Interestingly, compounds 2 and 3 are genuine high-dimensional supramolecular isomers. During the syntheses of 2-4, single crystals of dppeS2 were isolated, which indicates it was substituted by tpt ligand and also confirmed the transformation of sulfur from CuSCN to dppe. The transformation of sulfur can be observed only when the temperature is relative high (>160 degrees C). At 140 degrees C, complex 5 containing only CuSCN was attained and no dppeS2 has been monitored in the resulting filtrate.

Place, publisher, year, edition, pages
RSC Publishing, 2006. no 20, 2435-2443 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-90614DOI: 10.1039/b517969fPubMedID: 16705342OAI: oai:DiVA.org:liu-90614DiVA: diva2:613887
Available from: 2013-04-02 Created: 2013-04-02 Last updated: 2017-12-06

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Zhang, Xuanjun

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