Pyridine-bridged bis

Nielsen, D.J., CaveU, K.J., Skelton, B.W. and White, A.H. (2006) Methyl-palladium(U) complexes of pyridine-bridged bis(nucleophilic heterocyclic carbene) ligands substituent effects on structure, stabUity, and catalytic performance. Inorg. Chim. Acta, 359, 1855-69. 

Tu T, Mao H, Herbert C, Xu M, Doetz KH. A pyridine-bridged bis-benzimidazolylidene pincer nickel(II) complex synthesis and practical catalytic application towards Suzuki-Miyaura coupling with less-activated electrophiles. Chem Commun. 2010 46 7796-7798. 

A double set of signals in the 13C NMR spectra of THF and pyridine complexes of bridged bis-l-boraadamantanes initially prepared via an allylboron-acetylene condensation-hydroboration sequence shows that these compounds consist of a mixture of racemic and meso-imms <1998IZV728, 2000IZV501, B-2003MI94>. THF complexes show nB NMR shifts at about 12 ppm, whereas the pyridine analogues resonate at about —3 ppm (Table 4). 

A helical homobimetallic mercury(II) complex with a bridging bis(NHC) ligand serves as a starting point for a supramolecular assembly. Also tetrameric cyclic palladium(II) complexes have been obtained with bridging NHC-pyridine ligands. 

Jana et al. prepared alternative tetraamine monomer, 2,6-bis(3, 4 -diaminophenyl)-4-phenylpyridine (Py-TAB), for synthesizing pyridine bridge polybenzimidazole (Py-PBI) (Figure 5.15) [42]. 

FIGURE 9.34 The family of roughly spherical coordination polyhedra with general formula where metals (M) and bridging bis(pyridine) ligands (L) are mapped Royal Society of Chemistry. Copyright 2013.)... 

Pyridine-bridged bisimidazolium salts also afforded the preparation of dimetallic Rh(l) species by transmetallation from a silver(l)-NHC complex and deprotonation with a weak base. A pincer pyridine-bis-NHC Rh(lll) complex 330 was obtained from the reaction of the corresponding bisimidazolium salt and [Rh(/r-Cl)(cod)]2 in the presence of... 

CD derivatives can change their conformations in different media, and these conformation conversions can greatly affect their molecular recognition abiUties. For example, pyridine-2,6-dicarboxamide-bridged bis(jS-CD) 6 displays quite different circular dichroism spectra at different pH values [12], which indicates... 

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