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Zabost E, Nowicka AM, Mazerska Z, Stojek Z. Influence of temperature and interactions with ligands on dissociation of dsDNA and ligand–dsDNA complexes of various types of binding. An electrochemical study. Phys Chem Chem Phys 2012; 14:3408-13. [DOI: 10.1039/c2cp23824a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hambley TW. van der Waals Radii of Pt(II) and Pd(II) in Molecular Mechanics Models and an Analysis of Their Relevance to the Description of Axial M.H(-C), M.H(-N), M.S, and M.M (M = Pd(II) or Pt(II)) Interactions. Inorg Chem 1998; 37:3767-3774. [PMID: 11670477 DOI: 10.1021/ic971392m] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Parameters have been developed for the molecular mechanics modeling of nonbonded interactions involving Pt(II) and Pd(II). The value obtained for the van der Waals radius-about 1.7 Å-accords well with the value proposed by Bondi (J. Chem. Phys. 1964, 68, 441-451). This model has been used to investigate close M.H(-C), M.H(-N), M.H(-O), M.S, and M.M (M = Pd(II) or Pt(II)) contacts that have previously been described as weak or agostic bonds. It is argued that the M.H(-C) interactions are best described as van der Waals interactions that are in the repulsive region but the results are in accord with the description of M.H(-N) and M.H(-O) contacts as weak hydrogen bonds. M.S and M.M separations in systems without pi-acceptor ligands were accurately reproduced by using the same van der Waals parameters.
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Hambley TW, Ling ECH, Messerle BA. Combined NMR and Molecular Mechanics Study of the Isomers Formed in the Reaction of Dichloro(1,4-diazacycloheptane)platinum(II) with the Dinucleotide d(GpG). Inorg Chem 1996. [DOI: 10.1021/ic951489d] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Trevor W. Hambley
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Edwina C. H. Ling
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
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Bloemink MJ, Engelking H, Karentzopoulos S, Krebs B, Reedijk J. Synthesis, Crystal Structure, Antitumor Activity, and DNA-Binding Properties of the New Active Platinum Compound (Bis(N-methylimidazol-2-yl)carbinol)dichloroplatinum(II), Lacking a NH Moiety, and of the Inactive Analog Dichloro(N1,N1‘-dimethyl-2,2‘-biimidazole)platinum(II). Inorg Chem 1996. [DOI: 10.1021/ic950584j] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marieke J. Bloemink
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Anorganisch-Chemisches Institut der Universität Münster, D-48149 Münster, Germany
| | - Holger Engelking
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Anorganisch-Chemisches Institut der Universität Münster, D-48149 Münster, Germany
| | - Stefan Karentzopoulos
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Anorganisch-Chemisches Institut der Universität Münster, D-48149 Münster, Germany
| | - Bernt Krebs
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Anorganisch-Chemisches Institut der Universität Münster, D-48149 Münster, Germany
| | - Jan Reedijk
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Anorganisch-Chemisches Institut der Universität Münster, D-48149 Münster, Germany
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Carloni P, Andreoni W. Platinum-Modified Nucleobase Pairs in the Solid State: A Theoretical Study. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp961738z] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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