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Rarely Decorated Rutile Frameworks Built from Triangular Organic Spacers and Distorted Octahedral Co 3 Building Blocks
Author(s) -
Luo Feng,
Che Yunxia,
Zheng Jimin
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700285
Subject(s) - sbus , octahedron , chemistry , crystallography , rutile , cobalt , octahedral molecular geometry , ion , metal organic framework , metal ions in aqueous solution , topology (electrical circuits) , stereochemistry , inorganic chemistry , crystal structure , organic chemistry , combinatorics , mathematics , adsorption
Abstract Under mild temperatures, the self‐assembly of CoCl 2 and H 3 BTC in a solution of dmso generates a guest‐free metal–organic polymer, namely Co 3 (BTC) 2 (μ 1 ‐dmso) 2 (μ 2 ‐dmso) 2 ( 1 : dmso = dimethylsulfoxide, H 3 BTC = 1,3,5‐benzenetricarboxylic acid). In 1 , the Co II ions show the six‐coordinate octahedral geometry completed by the BTC 3– ions and the dmso oxygen atoms; remarkably, the coordinated dmso ligands not only act as terminal ligands to complete the octahedral geometry of the Co II ions, but also play an important role in bridging Co II ions together to give the Co 3 secondary building units (SBUs). From a topological viewpoint, this novel polymer is classified to be the decorated (3,6)‐connected rutile net with the (4.6 2 ) 2 (4 2 .6 10 .8 3 ) topology, where BTC 3– ligands and Co 3 SBUs are viewed to be the 3‐ and 6‐connected nodes, respectively. In addition, the magnetic properties of 1 are explored by using a linear trinuclear cobalt mode, thusleading to g = 2.41, J = –34.92 cm –1 , TIP = 340 × 10 –6 cm 3 mol –1 , θ = –6 K (a θ parameter was included to take into account intertrinuclear interactions).(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)