Cluster activation via cyclometallation. Formation of the cyclometallated triosmium carbonyl cluster [Os3H2(CO)9{P(C6H4)Ph}] and its reactions with phosphorus donor ligands. The X-ray crystal structures of [Os3H2(CO)9{P(C6H4)Ph}] and [Os3H(CO)9{P(OMe)3}(PPh2)]

1989 ◽  
pp. 2023 ◽  
Author(s):  
Stephen B. Colbran ◽  
Patricia T. Irele ◽  
Brian F. G. Johnson ◽  
Fernando J. Lahoz ◽  
Jack Lewis ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Donor Ligands ◽  
Carbonyl Cluster ◽  
X Ray

Substitution reactions of tetrahydrofuran in [Cr(thf)3Cl3] with mono and bidentate N-donor ligands: X-ray crystal structures of [Cr(bipy)(OH2)Cl3] and [HpyNH2][Cr(bipy)Cl4]

2008 ◽  
Vol 361 (11) ◽  
pp. 3042-3052 ◽  
Author(s):  
Nicholas F. Brennan ◽  
Burgert Blom ◽  
Simon Lotz ◽  
Petrus H. van Rooyen ◽  
Marilé Landman ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Donor Ligands ◽  
Substitution Reactions ◽  
X Ray

scholarly journals Four cytotoxic N4-substituted thiosemicarbazones derived from 2-hydroxynaphthalene-1-carboxaldehyde

2003 ◽  
Vol 59 (11) ◽  
pp. o629-o633 ◽  
Author(s):  
Paul V. Bernhardt ◽  
Lorraine M. Caldwell ◽  
David B. Lovejoy ◽  
Des R. Richardson
Keyword(s):  
Dimethyl Sulfoxide ◽  
Crystal Structures ◽  
Metal Ion ◽  
Antitumour Activity ◽  
Donor Ligands ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
X Ray ◽  
Conformational Variations ◽  
Optimum Conformation

The X-ray crystal structures are reported of four novel and potentially O,N,S-tridentate donor ligands that demonstrate antitumour activity. These ligands are 1-[(4-methylthiosemicarbazono)methyl]-2-naphthol, C13H13N3OS, (III), 1-[(4-ethylthiosemicarbazono)methyl]-2-naphthol, C14H15N3OS, (IV), 1-[(4-phenylthiosemicarbazono)methyl]-2-naphthol, C18H15N3OS, (V), and 1-[(4,4-dimethylthiosemicarbazono)methyl]-2-naphthol dimethyl sulfoxide solvate, C14H15N3OS·C2H6OS, (VI). These chelators are N4-substituted thiosemicarbazones, each based on the same parent aldehyde, namely 2-zhydroxynaphthalene-1-carboxaldehyde isonicotinoylhydrazone. Conformational variations within this series are discussed in relation to the optimum conformation for metal-ion binding.

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