37067-10-0Relevant articles and documents
Electronically variable imino-phenanthrolinyl-cobalt complexes; synthesis, structures and ethylene oligomerisation studies
Pelletier, Jérémie D.A.,Champouret, Yohan D.M.,Cadarso, Jesus,Clowes, Lucy,Ga?ete, Marcos,Singh, Kuldip,Thanarajasingham, Vakesan,Solan, Gregory A.
, p. 4114 - 4123 (2007/10/03)
The 2-imino-1,10-phenanthroline ligands, 1,10-C12H7N2-2-CR{double bond, long}N(2,6-i-Pr2-4-R1-C6H2) [R = R1 = H (L1); R = H, R1 = Br (L2); R = H, R1 = CN (L3); R = H, R1 = i-Pr (L4); R = Me, R1 = H (L5); R = Me, R1 = i-Pr (L6)], have been prepared in high yield from the condensation reaction of 1,10-C12H7N2-2-CR{double bond, long}O (R = H, Me) with one equivalent of the corresponding 4-substituted 2,6-diisopropylaniline. The molecular structures of L2, L5 and L6 reveal the imino nitrogen atoms to adopt a transoid configuration with respect to the phenanthrolinyl nitrogen atoms. Treatment of Lx with one equivalent of CoCl2 in n-BuOH at 90 °C gives the high spin complexes, (Lx)CoCl2 [Lx = L1 (1a), L2 (1b), L3 (1c), L4 (1d), L5 (1e), L6 (1f)], in which the metal centres exhibit distorted square pyramidal geometries. Activation of 1a-1f with excess methylaluminoxane (MAO) gives catalysts that are modestly active for the oligomerisation of ethylene affording mainly linear α-olefins along with some degree of internal olefins. While the donor capability of the 4-position of the N-aryl group does not appear to affect the activity of the catalyst, it does have an influence on the ratio of α-olefins to internal olefins. Single crystal X-ray diffraction studies have been performed on L2, L5, L6, 1a, 1c and 1f.
Carboxylic and Phosphate Ester Hydrolysis Catalysed by Bivalent Zinc and Coper Metallosurfactants
Weijnen, John G. F.,Koudijs, Arie,Engbersen, Johan F. J.
, p. 1121 - 1126 (2007/10/02)
The synthesis of three new lipophilic ligands are reported: Nα-(1,10-phenanthrolin-2-ylmethyl)-N-τ-dodecylhistamine (1), N-dodecyl-2-aminomethyl-1,10-phenanthroline (2), and Nα-(2-pyridylmethyl)-Nτ-dodecylhistam
The Synthesis of 1,10-Phenanthroline Esters Containing Unsaturated C18J Side Chains
Holan, George,Wernert, Gregory T.
, p. 873 - 881 (2007/10/02)
Octadeca-6,9,12-trienyl 3,4,7,8-tetramethyl-1,10-phenanthroline-2-carboxylate and 3,7,8-trimethyl-1,10-phenanthrolin-4-ylmethyl octadeca-9-12-15-trienoate have been synthesized.Furthermore, two series of 1,10-phenanthroline esters substituted in the 2-position with C18 unsaturated side chains have also been synthesized.