Please use this identifier to cite or link to this item:
|Title:||Constructing homo- And hetero-metallic molecular topologies using pyridylcarboxylates as spacers: Preparation of a half-ring complex with active coordination sites|
|Citation:||Teo, P., Foo, D.M.J., Koh, L.L., Hor, T.S.A. (2004-10-21). Constructing homo- And hetero-metallic molecular topologies using pyridylcarboxylates as spacers: Preparation of a half-ring complex with active coordination sites. Dalton Transactions (20) : 3389-3395. ScholarBank@NUS Repository. https://doi.org/10.1039/b408107b|
|Abstract:||Addition of isonicotinic acid NC 5H 4CO 2H (or isonicH) to [Pt(dppf)(MeCN) 2] 2+2OTf -- (dppf = l,1'-bis(diphenyl-phosphino)ferrocene, OTf = triflate) affords a mixture of the homometallic molecular square [Pt 4(dppf) 4(μ-O 2CC 5H 4N 4] 4+4OTf -, 1 and its precursor intermediate [Pt(dppf)(η 1- NC 5H 4CO 2H) 2] 2+2OTf -, 2. The latter captures [Pd(dppf)(MeCN) 2] 2+2OTf - to give a heterometallic square, [Pt 2Pd 2(dppf) 4(μ-O 2CC 5H 4N) 4] 4+4OTf -, 3. Slight skeletal modification of the ligand leads to different assemblies. This is illustrated by the addition of NC 5H 4CH 2CO 2H·HCl to [Pt(dppf)(MeCN) 2] 2+2OTf - to give [PtCl(dppf)(NC 5H 4CH 2CO 2H)] +OTf -, 4, which reacts with another equivalent of AgOTf to yield the dibridged complex [Pt 2(dppf) 2(μ-NC 5H 4CH 2CO 2) 2] 2+2OTf -, 5. All complexes, with the exception of 3, have been structurally characterized by single-crystal X-ray crystallography. Complexes 2 and 4 are potential precursors to further molecular topologies.|
|Source Title:||Dalton Transactions|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 20, 2018
WEB OF SCIENCETM
checked on Apr 16, 2018
checked on Apr 20, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.