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Tripathi S, Vaidya S, Ansari KU, Ahmed N, Rivière E, Spillecke L, Koo C, Klingeler R, Mallah T, Rajaraman G, Shanmugam M. Influence of a Counteranion on the Zero-Field Splitting of Tetrahedral Cobalt(II) Thiourea Complexes. Inorg Chem 2019; 58:9085-9100. [DOI: 10.1021/acs.inorgchem.9b00632] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shalini Tripathi
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Shefali Vaidya
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Kamal Uddin Ansari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Naushad Ahmed
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Eric Rivière
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS, Université Paris Sud, Université Paris Saclay, 91405 Orsay Cedex, France
| | | | | | | | - Talal Mallah
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS, Université Paris Sud, Université Paris Saclay, 91405 Orsay Cedex, France
| | - Gopalan Rajaraman
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
| | - Maheswaran Shanmugam
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
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Hight LM, McGuire MC, Zhang Y, Bork MA, Fanwick PE, Wasserman A, McMillin DR. π Donation and Its Effects on the Excited-State Lifetimes of Luminescent Platinum(II) Terpyridine Complexes in Solution. Inorg Chem 2013; 52:8476-82. [PMID: 23883444 DOI: 10.1021/ic4004643] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lauren M. Hight
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - Meaghan C. McGuire
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - Yu Zhang
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - Matthew A. Bork
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - Phillip E. Fanwick
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - Adam Wasserman
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - David R. McMillin
- Department of Chemistry,
560 Oval Drive, Purdue University, West Lafayette, Indiana 47907-2084,
United States
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Utz D, Kisslinger S, Heinemann FW, Hampel F, Schindler S. Syntheses, Characterization and Properties of Open-Chain Copper(I) Complexes. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000954] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lin J, Lu G, Daniels LM, Wei X, Sapp JB, Deng Y. Synthesis and characterization of platinum(II) complexes with 2-imidazolidinethione. X-ray crystal structure of tetra(2-imidazolidinethione- S )platinum(II) iodide dimethylsulfoxide solvate monohydrate. J COORD CHEM 2010. [DOI: 10.1080/00958970801927084] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Jianxin Lin
- a Department of Neurology , Baylor College of Medicine , One Baylor Plaza, Houston, TX, USA
| | - Guangyi Lu
- b Department of Chemistry , Texas Southern University , 3100 Cleburne Avenue, Houston, TX, USA
| | - Lee M. Daniels
- c Rigaku Americas Corp. , 9009 New Trails Dr., The Woodlands, TX, USA
| | - Xin Wei
- b Department of Chemistry , Texas Southern University , 3100 Cleburne Avenue, Houston, TX, USA
| | - John B. Sapp
- b Department of Chemistry , Texas Southern University , 3100 Cleburne Avenue, Houston, TX, USA
| | - Yuanjian Deng
- b Department of Chemistry , Texas Southern University , 3100 Cleburne Avenue, Houston, TX, USA
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A detailed theoretical study of the interaction of thiourea with cis-diaqua(ethylenediamine) platinum(II). ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2009.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ertürk H, Puchta R, van Eldik R. Synthesis, Characterization, Thermodynamic and Kinetic Properties of a New Series of Dinuclear PtIIComplexes. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200801135] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Banerjee S, Sen S, Chakraborty J, Butcher RJ, García CJG, Puchta R, Mitra S. A 'Butterfly'-shaped Water Tetramer in a Cu4 Complex Supported by a Hydrazone Ligand: Synthesis, Crystal Structure, Magnetic Properties, and Quantum Chemical Study. Aust J Chem 2009. [DOI: 10.1071/ch09192] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A potentially tetradentate NOOO donor hydrazone ligand, LH2 (condensation product of benzhydrazide with O-vanillin) generates a tetranuclear CuII complex [Cu4(L)4]·4H2O (1), whose void spaces are occupied by water tetramers presenting a ‘butterfly’ conformation with the highest dihedral angle reported to date, as revealed by its X-ray crystal structure. 1 has also been characterized using various spectroscopic techniques, including IR, UV-vis, and elemental analysis. Variable temperature magnetic susceptibility measurements reveal the presence of moderate antiferromagnetic intra-tetramer coupling between the four CuII centres connected through simple oxo groups of the hydrazone ligand with two different coupling constants (J1
= –61.7(3) cm–1 and J2
= –92(1) cm–1) corresponding to the two different CuII tetramers identified in the X-ray structure. We also report a quantum chemical study (MP2(full)/6–311+G(3df,2p)//B3LYP/6–311+G(3df,2p)) to calculate the stability of the water tetramers.
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Ertürk H, Maigut J, Puchta R, van Eldik R. Substitution behaviour of amine-bridged dinuclear Pt(II) complexes with bio-relevant nucleophiles. Dalton Trans 2008:2759-66. [PMID: 18688408 DOI: 10.1039/b718177a] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexes of the type [Pt2(N,N,N',N'-tetrakis(2-pyridylmethyl)diamine(HO)2]4+ and [Pt2(N,N,N',N'-tetrakis(2-pyridylmethyl)diamine(Cl)2]2+ were used to study their reactions with a series of bio-relevant nucleophiles, viz. thiourea, L-methionine and guanosine-5'-monophosphate (5'-GMP2-) as a function of nucleophile concentration and temperature. The reactions with the sulfur containing nucleophiles (thiourea and L-methionine) were followed under pseudo-first-order conditions by stopped-flow and UV-Vis spectrophotometry. The reaction with 5'-GMP2- was carried out under second order conditions and studied by NMR spectroscopy. The results indicate that the bridged dinuclear complexes remain intact after coordination of the studied nucleophiles for an extended period of time, which differs significantly from that reported for other multinuclear platinum complexes in the literature.
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Affiliation(s)
- Hakan Ertürk
- Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
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Li J, Hor TSA. Formation of [PtPd2(μ3-X)2(P–P)(dppmX)2]2+ (X = S, Se; P–P = dppe, 2 × PPh3) aggregates through activation of the chalcogen-rich [PtX4] ring by a PdI–PdI bond. Dalton Trans 2008:5708-11. [DOI: 10.1039/b811493e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fisher MG, Gale PA, Light ME, Quesada R. Hydrogen bonded networks in N–alkyl substituted thiourea platinum (II) oxocarbodianion and carboxylate salts. CrystEngComm 2008. [DOI: 10.1039/b803260b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bugarcić ZD, Rosić J, Petrović B, Summa N, Puchta R, van Eldik R. Kinetics and mechanism of the substitution reactions of [PtCl(bpma)]+, [PtCl(gly-met-S,N,N)] and their aqua analogues with L-methionine, glutathione and 5'-GMP. J Biol Inorg Chem 2007; 12:1141-50. [PMID: 17710451 DOI: 10.1007/s00775-007-0283-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2007] [Accepted: 07/23/2007] [Indexed: 02/04/2023]
Abstract
The substitution reactions of [PtCl(bpma)]+, [PtCl(gly-met-S,N,N)], [Pt(bpma)(H(2)O)](2+) and [Pt(gly-met-S,N,N)(H(2)O)](+) [where bpma is bis(2-pyridylmethyl)amine and gly-met-S,N,N is glycylmethionine] with L-methionine, glutathione and guanosine 5'-monophosphate (5'-GMP) were studied in aqueous solutions in 0.10 M NaClO(4) under pseudo-first-order conditions as a function of concentration and temperature using UV-vis spectrophotometry. The reactions of the chloro complexes were followed in the presence of 10 mM NaCl and at pH approximately 5, whereas the reactions of the aqua complexes were studied at pH 2.5. The [PtCl(bpma)]+ complex is more reactive towards the chosen nucleophiles than [PtCl(gly-met-S,N,N)]. Also, the aqua complexes are more reactive than the corresponding chloro complexes. The activation parameters for all the reactions studied suggest an associative substitution mechanism. The reactions of [PtCl(bpma)]+ and [PtCl(gly-met-S,N,N)] with 5'-GMP were studied by using (1)H NMR spectroscopy at 298 K. The pK (a) value of the [Pt(gly-met-S,N,N)(H(2)O)]+ complex is 5.95. Density functional theory calculations (B3LYP/LANL2DZp) show that in all cases guanine coordination to the L(3)Pt fragment (L(3) is terpyridine, bpma, diethylenetriamine, gly-met-S,N,N) is much more favorable than the thioether-coordinated form. The calculations collectively support the experimentally observed substitution of thioethers from Pt(II) complexes by N7-GMP. This study throws more light on the mechanistic behavior of platinum antitumor complexes.
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Affiliation(s)
- Zivadin D Bugarcić
- Department of Chemistry, Faculty of Science, University of Kragujevac, R. Domanovića 12, Kragujevac, Serbia
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