Supramolecular self-assembly of 1D and 3D heterometallic coordination polymers with triruthenium building blocks.
Ru(3)(TSA)(6) (1; H(2)TSA=2-thiosalicylic acid), which bears six peripheral carboxylate groups and was isolated in the form [NEt(4)](1.5)[Ru(3)(HTSA)(2)(TSA)(4)](OAc)(0.5)·3.5H(2)O, serves as a building block for assembly of heterometallic coordination polymers. Treatment of 1 with [Fe(acac)(3)] (acac=acetylacetonate) in EG/H(2)O (EG=ethylene glycol) afforded 1D Ru(3)-Fe coordination polymer 2 by means of the connection of the building block 1 through iron centers. Treatment of 1 with MnCl(2) in EG resulted in the formation of 1D Ru(3)-Mn(3) coordination polymer 3, which features self-assembled polynuclear linking units Mn(3)(OCH(2)CH(2)O)(3), each of which contains a planar Mn(3)O(3) ring. By treating 1 with Gd(NO(3))(3) and NaHCO(3) in EG, a 3D Ru(3)-Gd(6) coordination polymer 4 was obtained; this 3D coordination polymer features unprecedented Gd(6)(μ(3)-CO(3))(4) units. The magnetic properties of 1-4, along with DFT calculations on the electronic structure of 1, are also described.
State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China.
Sharon Lai-Fung
SL
Chan
Song
S
Gao
Stephen Sin-Yin
SS
Chui
Lam
L
Shek
Jie-Sheng
JS
Huang
Chi-Ming
CM
Che
D018360:Crystallography, X-Ray; D005290:Ferric Compounds / Q000737:chemistry*; D005682:Gadolinium / Q000737:chemistry*; D046911:Macromolecular Substances / Q000138:chemical synthesis / Q000737:chemistry; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D011789:Quantum Theory; D012428:Ruthenium / Q000737:chemistry*
D005290:Ferric Compounds; D046911:Macromolecular Substances; D009942:Organometallic Compounds; D011108:Polymers; D008345:Manganese; D012428:Ruthenium; D005682:Gadolinium