1
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Choi MG, Seo JY, Cho EJ, Chang SK. Colorimetric analysis of palladium using thiocarbamate hydrolysis and its application for detecting residual palladium in drugs. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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2
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Zhang J, Fang H. Insertion of Carbon Monoxide into the Terminal Co–O Bond in a Methoxocobalt(III) Complex via a Tuneable Mechanism. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jia Zhang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin 300350, China
| | - Huayi Fang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin 300350, China
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3
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Martínez‐Prieto LM, Cámpora J. Nickel and Palladium Complexes with Reactive σ‐Metal‐Oxygen Covalent Bonds. Isr J Chem 2020. [DOI: 10.1002/ijch.202000001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Luis M. Martínez‐Prieto
- Instituto de Tecnología Química. CSIC –Universidad Politécnica de Valencia Avda. Los Naranjos, S/N 46022 Valencia Spain
| | - Juan Cámpora
- Instituto de Investigaciones Químicas, CSIC –Universidad de Sevilla. C/ Américo Vespucio, 49. 41092 Seville Spain
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4
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Martínez-Prieto LM, Palma P, Cámpora J. Monomeric alkoxide and alkylcarbonate complexes of nickel and palladium stabilized with the iPrPCP pincer ligand: a model for the catalytic carboxylation of alcohols to alkyl carbonates. Dalton Trans 2019; 48:1351-1366. [PMID: 30608093 DOI: 10.1039/c8dt04919j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monomeric alkoxo complexes of the type [(iPrPCP)M-OR] (M = Ni or Pd; R = Me, Et, CH2CH2OH; iPrPCP = 2,6-bis(diisopropylphosphino)phenyl) react rapidly with CO2 to afford the corresponding alkylcarbonates [(iPrPCP)M-OCOOR]. We have investigated the reactions of these compounds as models for key steps of catalytic synthesis of organic carbonates from alcohols and CO2. The MOCO-OR linkage is kinetically labile, and readily exchanges the OR group with water or other alcohols (R'OH), to afford equilibrium mixtures containing ROH and [(iPrPCP)M-OCOOH] (bicarbonate) or [(iPrPCP)M-OCOOR'], respectively. However, [(iPrPCP)M-OCOOR] complexes are thermally stable and remain indefinitely stable in solution when these are kept in sealed vessels. The constants for the exchange equilibria have been interpreted, showing that CO2 insertion into M-O bonds is thermodynamically more favorable for M-OR than for M-OH. Alkylcarbonate complexes [(iPrPCP)M-OCOOR] fail to undergo nucleophilic attack by ROH to yield organic carbonates ROCOOR, either intermolecularly (using neat ROH solvent) or in intramolecular fashion (e.g., [(iPrPCP)M-OCOOCH2CH2OH]). In contrast, [(iPrPCP)M-OCOOMe] complexes react with a variety of electrophilic methylating reagents (MeX) to afford dimethylcarbonate and [(iPrPCP)M-X]. The reaction rates increase in the order X = OTs < IMe ≪ OTf and Ni < Pd. These findings suggest that a suitable catalyst design should combine basic and electrophilic alcohol activation sites in order to perform alkyl carbonate syntheses via direct alcohol carboxylation.
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Affiliation(s)
- Luis M Martínez-Prieto
- Instituto de Investigaciones Químicas. CSIC-Universidad de Sevilla, C/Américo Vespucio, 49, 41092, Sevilla, Spain.
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5
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Synthesis and characterisation of POCsp3OP supported Ni(II) hydroxo, hydroxycarbonyl and carbonate complexes. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.09.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Gimeno-Prat A, Cortés-Sanchón A, Martín A, Baya M, Casas JM. Platinum-mediated monohydration of SO 2. Dalton Trans 2018; 47:16846-16849. [DOI: 10.1039/c8dt04169e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The monohydration of SO2 has been achieved in solution mediated by a platinum-aquo complex.
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Affiliation(s)
- Antonio Gimeno-Prat
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH) CSIC–Universidad de Zaragoza
- ES-50009 Zaragoza
- Spain
| | - Adrián Cortés-Sanchón
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH) CSIC–Universidad de Zaragoza
- ES-50009 Zaragoza
- Spain
| | - Antonio Martín
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH) CSIC–Universidad de Zaragoza
- ES-50009 Zaragoza
- Spain
| | - Miguel Baya
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH) CSIC–Universidad de Zaragoza
- ES-50009 Zaragoza
- Spain
| | - José M. Casas
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH) CSIC–Universidad de Zaragoza
- ES-50009 Zaragoza
- Spain
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7
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Behnia A, Fard MA, Blacquiere JM, Puddephatt RJ. Reactivity of a Palladacyclic Complex: A Monodentate Carbonate Complex and the Remarkable Selectivity and Mechanism of a Neophyl Rearrangement. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ava Behnia
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Mahmood A. Fard
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Johanna M. Blacquiere
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Richard J. Puddephatt
- Department of Chemistry, University of Western Ontario, London, Ontario N6A 5B7, Canada
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8
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Hazari N, Heimann JE. Carbon Dioxide Insertion into Group 9 and 10 Metal–Element σ Bonds. Inorg Chem 2017; 56:13655-13678. [DOI: 10.1021/acs.inorgchem.7b02315] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nilay Hazari
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Jessica E. Heimann
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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9
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Krishnaswamy S, Chand DK. cis-Protected palladium(ii) based binuclear complexes as tectons in crystal engineering and the imperative role of the cis-protecting agent. CrystEngComm 2017. [DOI: 10.1039/c7ce00654c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The shape and molecular packing of cis-protected Pd(ii) based binuclear complexes depends upon the ligand and cis-protecting agents.
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Affiliation(s)
| | - Dillip Kumar Chand
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
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10
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Paluru DK, Dey S, Wadawale AP, Bhuvanesh N, Grupp A, Kaim W, Jain VK. Coordination Polymers of Palladium Bridged by Carboxylate and Dimethylaminoalkylselenolate Ligands. Chem Asian J 2015; 11:401-10. [DOI: 10.1002/asia.201501087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/06/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Dilip K. Paluru
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Sandip Dey
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Amey P. Wadawale
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
| | - Nattamai Bhuvanesh
- Department of Chemistry; Texas A&M University; PO Box 30012 College Station Texas 77842-3012 USA
| | - Anita Grupp
- Institut für Anorganische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Wolfgang Kaim
- Institut für Anorganische Chemie; Universität Stuttgart; Pfaffenwaldring 55 70550 Stuttgart Germany
| | - Vimal K. Jain
- Chemistry Division; Bhabha Atomic Research Centre; Mumbai 400 085 India
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11
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Carbonato-bridged heteronuclear NiII2LnIII2 (Ln=Tb, Dy, Ho, Er, Tm, Yb, Lu) complexes synthesized by fixation of atmospheric CO2 – Structural and magnetic studies. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.09.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Vadivelu P, Suresh CH. Metal- and Ligand-Assisted CO2 Insertion into Ru–C, Ru–N, and Ru–O Bonds of Ruthenium(II) Phosphine Complexes: A Density Functional Theory Study. Inorg Chem 2014; 54:502-12. [DOI: 10.1021/ic5022577] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Prabha Vadivelu
- Inorganic and Theoretical Chemistry Section, CST Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695019, Kerala, India
| | - Cherumuttathu H. Suresh
- Inorganic and Theoretical Chemistry Section, CST Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum 695019, Kerala, India
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13
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Seals W, Arman H, Bach SB, Musie GT. Synthesis, characterization and reactivity of a novel Di-nickel complex towards carbon dioxide. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2014.03.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Martínez-Prieto LM, Real C, Ávila E, Álvarez E, Palma P, Cámpora J. Reversible Reactions of Ni and Pd Hydroxo Pincer Complexes [(iPrPCP)M-OH] with CO2: Solid-State Study of the Decarboxylation of the Monomeric Bicarbonate Complexes [(iPrPCP)M-OCOOH] (M = Ni, Pd). Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300995] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Giannoccaro P, Casiello M, Milella A, Monopoli A, Cotugno P, Nacci A. Synthesis of 5-membered cyclic carbonates by oxidative carbonylation of 1,2-diols promoted by copper halides. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.08.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Liu YM, Lin YC, Chen WC, Cheng JH, Chen YL, Yap GPA, Sun SS, Ong TG. Synthesis and characterization of para-pyridine linked NHC palladium complexes and their studies for the Heck–Mizoroki coupling reaction. Dalton Trans 2012; 41:7382-9. [DOI: 10.1039/c2dt30520h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Fan T, Chen X, Lin Z. Theoretical studies of reactions of carbon dioxide mediated and catalysed by transition metal complexes. Chem Commun (Camb) 2012; 48:10808-28. [DOI: 10.1039/c2cc34542k] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Tang SY, Guo QX, Fu Y. Mechanistic origin of ligand-controlled regioselectivity in Pd-catalyzed C-H activation/arylation of thiophenes. Chemistry 2011; 17:13866-76. [PMID: 22052569 DOI: 10.1002/chem.201101587] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Indexed: 11/06/2022]
Abstract
The use of ligands to control regioselectivity in transition-metal-catalyzed C-H activation/functionalization is a highly desirable but challenging task. Recently, Itami et al. reported an important finding relating to Pd-catalyzed ligand-controlled α/β-selective C-H arylation of thiophenes. Specifically, the use of the 2,2'-bipyridyl ligand resulted in α-arylation, whereas the use of the bulky fluorinated phosphine ligand P[OCH(CF(3))(2)](3) resulted in β-arylation. Understanding of this surprising ligand-controlled α/β-selectivity could provide important insights into the development of more efficient catalyst systems for selective C-H arylation, and so we carried out a detailed computational study on the problem with use of density functional theory methods. Three mechanistic possibilities--S(E)Ar and migration, metalation/deprotonation, and Heck-type arylation mechanisms--were examined. The results showed that the S(E)Ar and migration mechanism might not be plausible, because the key Wheland intermediates could not be obtained. On the other hand, our study indicated that the metalation/deprotonation and Heck-type arylation mechanisms were both involved in Itami's reactions. In the metalation/deprotonation pathway the α-selective product (C5-product) was preferred, whereas in the Heck-type arylation mechanism the β-selective product (C4-product) was favored. The ligands played crucial roles in tuning the relative barriers of the two different pathways. In the 2,2'-bipyridyl-assisted system, the metalation/deprotonation pathway was energetically advantageous, leading to α-selectivity. In the P[OCH(CF(3))(2)](3)-assisted system, on the other hand, the Heck-type arylation mechanism was kinetically favored, leading to β-selectivity. An interesting finding was that P[OCH(CF(3))(2)](3) could produce a C-H···O hydrogen bond in the catalyst system, which was crucial for stabilization of the Heck-type transition state. In comparison, this C-H···O hydrogen bond was absent with the other phosphine ligands [i.e., P(OMe)(3), PPh(3), PCy(3)] and these phosphine ligands therefore favored the metalation/deprotonation pathway leading to α-selectivity. Furthermore, in this study we have provided theoretical evidence showing that the Heck-type arylation reaction could proceed through an anti-β-hydride elimination process.
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Affiliation(s)
- Shi-Ya Tang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P.R. China
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19
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Pearson DM, Conley NR, Waymouth RM. Palladium-Catalyzed Carbonylation of Diols to Cyclic Carbonates. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100240] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Fulmer GR, Kaminsky W, Kemp RA, Goldberg KI. Syntheses and Characterization of Palladium Complexes with a Hemilabile “PCO” Pincer Ligand. Organometallics 2011. [DOI: 10.1021/om101150y] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gregory R. Fulmer
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Richard A. Kemp
- Department of Chemistry & Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States, and Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, New Mexico 87106, United States
| | - Karen I. Goldberg
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
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21
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Marchetti F, Zacchini S, Salmi M, Busetto L, Zanotti V. C-H Activation in Diiron Bridging Vinyliminium Ligands: Reaction with CS2 to Form New Zwitterionic Complexes Acting as Organometallic Ligands. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201001167] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Blank F, Vieth JK, Ruiz J, Rodríguez V, Janiak C. η5-Cyclopentadienylpalladium(II) complexes: Synthesis, characterization and use for the vinyl addition polymerization of norbornene and the copolymerization with 5-vinyl-2-norbornene or 5-ethylidene-2-norbornene. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.08.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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23
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Boisvert L, Denney MC, Hanson SK, Goldberg KI. Insertion of molecular oxygen into a palladium(II) methyl bond: a radical chain mechanism involving palladium(III) intermediates. J Am Chem Soc 2010; 131:15802-14. [PMID: 19827779 DOI: 10.1021/ja9061932] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of (bipy)PdMe(2) (1) (bipy = 2,2'-bipyridine) with molecular oxygen results in the formation of the palladium(II) methylperoxide complex (bipy)PdMe(OOMe) (2). The identity of the product 2 has been confirmed by independent synthesis. Results of kinetic studies of this unprecedented oxygen insertion reaction into a palladium alkyl bond support the involvement of a radical chain mechanism. Reproducible rates, attained in the presence of the radical initiator 2,2'-azobis(2-methylpropionitrile) (AIBN), reveal that the reaction is overall first-order (one-half-order in both [1] and [AIBN], and zero-order in [O(2)]). The unusual rate law (half-order in [1]) implies that the reaction proceeds by a mechanism that differs significantly from those for organic autoxidations and for the recently reported examples of insertion of O(2) into Pd(II) hydride bonds. The mechanism for the autoxidation of 1 is more closely related to that found for the autoxidation of main group and early transition metal alkyl complexes. Notably, the chain propagation is proposed to proceed via a stepwise associative homolytic substitution at the Pd center of 1 with formation of a pentacoordinate Pd(III) intermediate.
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Affiliation(s)
- Luc Boisvert
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington, 98195-1700, USA
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24
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Blank F, Scherer H, Ruiz J, Rodríguez V, Janiak C. Palladium(ii) complexes with pentafluorophenyl ligands: structures, C6F5 fluxionality by 2D-NMR studies and pre-catalysts for the vinyl addition polymerization of norbornene. Dalton Trans 2010; 39:3609-19. [DOI: 10.1039/b925674a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Ruiz J, Rodríguez V, de Haro C, Espinosa A, Pérez J, Janiak C. New 7-azaindole palladium and platinum complexes: crystal structures and theoretical calculations. In vitro anticancer activity of the platinum compounds. Dalton Trans 2010; 39:3290-301. [DOI: 10.1039/b920854b] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Sun Y, Zhang Z, Wang X, Li X, Weng L, Zhou X. Lanthanide-Induced Diinsertion of Isocyanates into the N−H Bond: Synthesis, Structure, and Reactivity of Organolanthanides Containing Diureido Ligands. Organometallics 2009. [DOI: 10.1021/om900631j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan Sun
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Zhengxing Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Xu Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Xiaoqing Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Linhong Weng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | - Xigeng Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People's Republic of China
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27
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New carboalkoxybis(triphenylphosphine)palladium(II) cationic complexes: Synthesis, characterization, reactivity and role in the catalytic hydrocarboalkoxylation of ethene. X-ray structure of trans-[Pd(COOMe)(TsO)(PPh3)2]·2CHCl3. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcata.2008.10.002] [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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28
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Ruiz J, Lorenzo J, Vicente C, López G, María López-de-Luzuriaga J, Monge M, Avilés FX, Bautista D, Moreno V, Laguna A. New palladium(II) and platinum(II) complexes with 9-aminoacridine: structures, luminiscence, theoretical calculations, and antitumor activity. Inorg Chem 2008; 47:6990-7001. [PMID: 18593114 DOI: 10.1021/ic800589m] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The new complexes [Pd(dmba)( N10-9AA)(PPh 3)]ClO 4 ( 1), [Pt(dmba)( N9-9AA)(PPh 3)]ClO 4 ( 2), [Pd(dmba)( N10-9AA)Cl] ( 3), and [Pd(C 6F 5)( N10-9AA)(PPh 3)Cl] ( 4) (9-AA = 9-aminoacridine; dmba = N,C-chelating 2-(dimethylaminomethyl)phenyl) have been prepared. The crystal structures have been established by X-ray diffraction. In complex 2, an anagostic C-H...Pt interaction is observed. All complexes are luminescent in the solid state at room temperature, showing important differences between the palladium and platinum complexes. Complex 2 shows two structured emission bands at high and low energies in the solid state, and the lifetimes are in agreement with excited states of triplet parentage. Density functional theory and time-dependent density functional theory calculations for complex 2 have been done. Values of IC 50 were also calculated for the new complexes 1- 4 against the tumor cell line HL-60. All of the new complexes were more active than cisplatin (up to 30-fold in some cases). The DNA adduct formation of the new complexes synthesized was followed by circular dichroism and electrophoretic mobility. Atomic force microscopy images of the modifications caused by the complexes on plasmid DNA pB R322 were also obtained.
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Affiliation(s)
- José Ruiz
- Departamento de Quimica Inorganica, Universidad de Murcia, E-30071 Murcia, Spain.
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29
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Chen JL, Lin CH, Chen JH, Chi Y, Chiu YC, Chou PT, Lai CH, Lee GH, Carty AJ. Reactions of the (2-Pyridyl) Pyrrolide Platinum(II) Complex Driven by Sterically Encumbered Chelation: A Model for the Reversible Attack of Alcohol at the Coordinated Carbon Monoxide. Inorg Chem 2008; 47:5154-61. [DOI: 10.1021/ic800117v] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing-Lin Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Chen-Huey Lin
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Jian-Hong Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Yun Chi
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Yuan-Chieh Chiu
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Pi-Tai Chou
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Cheng-Hsuan Lai
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Gene-Hsiang Lee
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
| | - Arthur J. Carty
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan,
- Department of Chemistry and Instrumentation Center, National Taiwan University, Taipei 106, Taiwan,
- and Steacie Institute for Molecular Sciences, National Research Council, Ottawa, Ontario K1A 0R6, Canada
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Ruiz J, Villa MD, Cutillas N, López G, Haro CD, Bautista D, Moreno V, Valencia L. Palladium(II) and Platinum(II) Organometallic Complexes with 4,7-dihydro-5-methyl-7-oxo[1,2,4]triazolo[1,5-a]pyrimidine. Antitumor Activity of the Platinum Compounds. Inorg Chem 2008; 47:4490-505. [DOI: 10.1021/ic701873b] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José Ruiz
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - María Dolores Villa
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Natalia Cutillas
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Gregorio López
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Concepción de Haro
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Delia Bautista
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Virtudes Moreno
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
| | - Laura Valencia
- Departamento de Química Inorgánica,
Universidad de Murcia, E-30071- Murcia, Spain,
- S.U.I.C., Edificio S.A.C.E., Universidad de Murcia,
E-30071-Murcia, Spain,
- Department de Química Inorgànica,
Universitat de Barcelona, Martí i Franquès 1-11, E-08028
Barcelona, Spain, and
- Departamento de Química Inorgánica,
Universidad de Santiago de Compostela, Avda. de las Ciencias s/n,
E-15782 Santiago de Compostela, Spain
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Kumar A, De S, Samuelson AG, Jemmis ED. Differing Reactivities of Zirconium and Titanium Alkoxides with Phenyl Isocyanate: An Experimental and Computational Study. Organometallics 2008. [DOI: 10.1021/om701004f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Akshai Kumar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
| | - Susmita De
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
| | - Ashoka G. Samuelson
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
| | - Eluvathingal D. Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
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32
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Hadzovic A, Janetzko J, Song D. Novel dinuclear and trinuclear palladium β-diiminate complexes containing amido–chloro double-bridges. Dalton Trans 2008:3279-81. [DOI: 10.1039/b804792h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cámpora J, Matas I, Palma P, Álvarez E, Graiff C, Tiripicchio A. Monomeric Alkoxo and Amido Methylnickel(II) Complexes. Synthesis and Heterocumulene Insertion Chemistry. Organometallics 2007. [DOI: 10.1021/om7002909] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan Cámpora
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas−Universidad de Sevilla. Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G.P. Usberti 17/A, I-43100 Parma, Italy
| | - Inmaculada Matas
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas−Universidad de Sevilla. Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G.P. Usberti 17/A, I-43100 Parma, Italy
| | - Pilar Palma
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas−Universidad de Sevilla. Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G.P. Usberti 17/A, I-43100 Parma, Italy
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas−Universidad de Sevilla. Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G.P. Usberti 17/A, I-43100 Parma, Italy
| | - Claudia Graiff
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas−Universidad de Sevilla. Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G.P. Usberti 17/A, I-43100 Parma, Italy
| | - Antonio Tiripicchio
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas−Universidad de Sevilla. Avenida Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Viale G.P. Usberti 17/A, I-43100 Parma, Italy
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35
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Ruiz J, Lorenzo J, Sanglas L, Cutillas N, Vicente C, Villa MD, Avilés FX, López G, Moreno V, Pérez J, Bautista D. Palladium(II) and Platinum(II) Organometallic Complexes with the Model Nucleobase Anions of Thymine, Uracil, and Cytosine: Antitumor Activity and Interactions with DNA of the Platinum Compounds. Inorg Chem 2006; 45:6347-60. [PMID: 16878945 DOI: 10.1021/ic060374e] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pd(II) and Pt(II) complexes with the anions of the model nucleobases 1-methylthymine (1-MethyH), 1-methyluracil (1-MeuraH), and 1-methylcytosine (1-MecytH) of the types [Pd(dmba)(mu-L)]2 [dmba = N,C-chelating 2-((dimethylamino)methyl)phenyl; L = 1-Methy, 1-Meura or 1-Mecyt] and [M(dmba)(L)(L')] [L = 1-Methy or 1-Meura; L' = PPh(3) (M = Pd or Pt), DMSO (M = Pt)] have been obtained. Palladium complexes of the types [Pd(C6F5)(N-N)(L)] [L = 1-Methy or 1-Meura; N-N = N,N,N',N'-tetramethylethylenediamine (tmeda), 2,2'-bipyridine (bpy), or 4,4'-dimethyl-2,2'-bipyridine (Me2bpy)] and [NBu4][Pd(C6F5)(1-Methy)2(H2O)] have also been prepared. The crystal structures of [Pd(dmba)(mu-1-Methy)]2, [Pd(dmba)(mu-1-Mecyt)]2.2CHCl3, [Pd(dmba)(1-Methy)(PPh3)].3CHCl3, [Pt(dmba)(1-Methy)(PPh3)], [Pd(tmeda)(C6F5)(1-Methy)], and [NBu4][Pd(C6F5)(1-Methy)2(H2O)].H2O have been established by X-ray diffraction. The DNA adduct formation of the new platinum complexes synthesized was followed by circular dichroism and electrophoretic mobility. Atomic force microscopy images of the modifications caused by the platinum complexes on plasmid DNA pBR322 were also obtained. Values of IC50 were also calculated for the new platinum complexes against the tumor cell line HL-60. All the new platinum complexes were more active than cisplatin (up to 20-fold in some cases).
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Affiliation(s)
- José Ruiz
- Departamento de Química Inorganica, Universidad de Murcia, 30071-Murcia, Spain.
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Ruiz J, Cutillas N, Vicente C, Villa MD, López G, Lorenzo J, Avilés FX, Moreno V, Bautista D. New palladium(II) and platinum(II) complexes with the model nucleobase 1-methylcytosine: antitumor activity and interactions with DNA. Inorg Chem 2006; 44:7365-76. [PMID: 16212362 DOI: 10.1021/ic0502372] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Palladium and platinum complexes with the model nucleobase 1-methylcytosine (1-Mecyt) of the types [Pd(N-N)(C6F5)(1-Mecyt)]ClO4 [N-N = bis(3,5-dimethylpyrazol-1-yl)methane (bpzm), bis(pyrazol-1-yl)methane (bpzm), N,N,N',N'-tetramethylethylenediamine (tmeda), or 2,2'-bipyridine (bpy)] and [M(dmba)(L')(1-Mecyt)]ClO4 [dmba = N,C-chelating 2-(dimethylaminomethyl)phenyl; L' = PPh(3) (M = Pd or Pt), DMSO (M = Pt)] have been obtained. Palladium and platinum complexes of the types cis-[M(C6F5)2(1-Mecyt)2] (M = Pd or Pt) and cis-[Pd(L')(C6F5)(1-Mecyt)2]ClO4 (L' = PPh(3) or t-BuNC) have also been prepared. The crystal structures of [Pd(bpzm)(C6F5)(1-Mecyt)]ClO4, [Pt(dmba)(DMSO)(1-Mecyt)]ClO4, cis-[Pd(C6F5)2(1-Mecyt)2], and cis-[Pd(t-BuNC)(C6F5)(1-Mecyt)2]ClO4 have been established by X-ray diffraction. There is extensive hydrogen bonding (N-H...O, C-H...F or C-H...O) in all the compounds. There are also intermolecular pi-pi interactions between pyrimidine rings of adjacent chains in [Pd(C6F5)2(1-Mecyt)2]. DNA adduct formation of the new complexes synthesized was followed by circular dichroism and electrophoretic mobility. Atomic force microscopy images of the modifications caused by the complexes on plasmid DNA pBR322 were also obtained. Values of IC(50) were also calculated for the new complexes against the tumor cell line HL-60. At a short incubation time (24 h) almost all new complexes were more active than cisplatin.
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Affiliation(s)
- José Ruiz
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, 30071 Murcia, Spain.
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37
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Efficient synthesis of fluorinated biphenyl derivatives via Pd-catalyzed Suzuki coupling reactions in aqueous solvents at room temperature. J Fluor Chem 2006. [DOI: 10.1016/j.jfluchem.2005.09.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Lozano AA, Sáez M, Pérez J, García L, Lezama L, Rojo T, López G, García G, Santana MD. Structure and magnetic properties of carbonate-bridged five-coordinate nickel(ii) complexes controlled by solvent effect. Dalton Trans 2006:3906-11. [PMID: 16896451 DOI: 10.1039/b604541c] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO2 and HCO3- react with the dinuclear hydroxo-complex [Ni(mcN3)(mu-OH)]2(PF6)2 (mcN3 = 2,4,4,9-tetramethyl-1,5,9-triazacyclododec-1-ene) to form micro-CO3 bridged nickel(II) complexes, [{Ni(mcN3)}2(mu-CO3)](PF6)2 (1a) with a symmetric core in which both nickel atoms are five-coordinate and [Ni(mcN3)(mu-CO3)Ni(mcN3)(MeCN)](PF6)2 (1b) with an asymmetric dinuclear core containing five- and six-coordinate nickel atoms. The magnetic behaviour indicates the existence of antiferromagnetic coupling between the metallic centres. A substantial increase in the value of J occurs when the symmetric five-coordinate nickel species transforms to an asymmetric five- and six-coordinate species by axial coordination of acetonitrile.
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Affiliation(s)
- A Abel Lozano
- Departamento de Química Inorgánica, Universidad de Murcia, 30071 Murcia, Spain
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Althoff G, Ruiz J, Rodríguez V, López G, Pérez J, Janiak C. Can a single C–H⋯F–C hydrogen bond make a difference? Assessing the H⋯F bond strength from 2-D1H-19F CP/MAS NMR. CrystEngComm 2006. [DOI: 10.1039/b610718b] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ruiz J, Santana MD, Lozano A, Vicente C, García G, López G, Pérez J, García L. Synthesis and Characterization of Heterotrinuclear Complexes of Nickel and Palladium with Pyridinecarboxylate as Bridging Ligands. Eur J Inorg Chem 2005. [DOI: 10.1002/ejic.200500123] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Ruiz J, Martínez MT, Vicente C, Rodríguez V, López G, Pérez J, Chaloner PA, Hitchcock PB. Synthesis and Characterization of Monomeric Aryloxo Palladium Complexes of the Type [Pd(N-N)(OAr)(C6F5)]. Crystal Structure of [Pd(tmeda)(C6F5)(OC6H4NO2-p)]. Z Anorg Allg Chem 2005. [DOI: 10.1002/zaac.200570048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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42
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Reversible double insertion of aryl isocyanates into the Ti–O bond of titanium(IV) isopropoxide. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2004.11.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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43
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Ruiz J, Vicente C, Cutillas N, Pérez J. Pentafluorophenyl imidato palladium(ii) complexes: catalysts for Suzuki cross-coupling reactions. Dalton Trans 2005:1999-2006. [PMID: 15909050 DOI: 10.1039/b503101j] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel N-bonded imidato complexes of general formula [Pd(N-N)(C6F5)(imidate)](imidate = maleimidate, succinimidate or phthalimidate; N-N = 2,2'-bipyridine (bipy), 4,4'-dimethyl-2,2'-bipyridine (Me2bipy) or N,N,N',N'-tetramethylethylenediamine (tmeda)), [NBu4][Pd(C6F5)(H2O)(succinimidate)2] and [NBu4][Pd(C6F5)(L)(succinimidate)2](L = PPh3 or t-BuNC) have been synthesised. These complexes are air-, light- and moisture-stable. The crystal structures of [Pd(tmeda)(C6F5)(maleimidate)].H2O.0.5CHCl3, [NBu4][Pd(C6F5)(H2O)(succinimidate)2].H2O and [NBu4][Pd(C6F5)(t-BuNC)(succinimidate)2].2H2O have been determined by X-ray diffraction. Many of these new complexes are shown to be active phosphine-free palladium catalysts/precatalysts for the Suzuki cross-coupling reactions of aryl bromides and aryl chlorides with phenylboronic acid.
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Affiliation(s)
- José Ruiz
- Departamento de Quimica Inorganica, Universidad de Murcia, 30071 Murcia, Spain.
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Tris(pyrazolyl)methane Ligands: Syntheses and Structures of Monometallic and Metallodendritic Complexes. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200400162] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Ruiz J, Rodrı́guez V, de Haro C, Pérez J, López G. New thiocarbamate and thioureate palladium and platinum complexes: synthesis and use as metalloligands. Unprecedented coordination of the thioureate ligand in [(C6F5)2Pd{μ2,η2-SC(NMe2)NPh}Pd(C6F5)(bpzm)]. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2004.01.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Ruiz J, Vicente C, Rodrı́guez V, Cutillas N, López G, de Arellano CR. Synthesis and characterization of monomeric siloxo palladium(II) complexes: crystal structure of [Pd(tmeda)(C6F5)(OSiPh3)]. J Organomet Chem 2004. [DOI: 10.1016/j.jorganchem.2004.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Ruiz J, Martínez MT, Rodríguez V, López G, Pérez J, Chaloner PA, Hitchcock PB. Condensation reactions of monomeric hydroxo palladium complexes with active methyl and methylene compounds. Dalton Trans 2004:3521-7. [PMID: 15510272 DOI: 10.1039/b409942g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Heating a suspension of the monomeric hydroxo palladium complex of the type [Pd(N-N)(C(6)F(5))(OH)](N-N = bipy, Me(2)bipy, phen or tmeda) in methylketone (acetone or methylisobutylketone) under reflux affords the corresponding ketonyl palladium complex [Pd(N-N)(C(6)F(5))(CH(2)COR)]. On the other hand, the reaction of the hydroxo palladium complexes [Pd(N-N)(C(6)F(5))(OH)](N-N = bipy, phen or tmeda) with diethylmalonate or malononitrile yields the C-bound enolate palladium complexes [Pd(N-N)(CHX(2))(C(6)F(5))](X = CO(2)Et or CN), and the reaction of [Pd(N-N)(C(6)F(5))(OH)](N-N = bipy or phen) with nitromethane gives the nitromethyl palladium complexes [Pd(N-N)(CH(2)NO(2))(C(6)F(5))]. [Pd(tmeda)(C(6)F(5))(OH)] catalyses the cyclotrimerization of malononitrile. The crystal structures of [Pd(bipy)(C(6)F(5))(CH(2)COMe)].1/2Me(2)CO, [Pd(tmeda)(C(6)F(5))[CH(CO(2)Et)(2)]], [Pd(tmeda)(C(6)F(5))[CH(CN)(2)]] and [Pd(tmeda)(C(6)F(5))(CH(2)NO(2))].1/2CH(2)Cl(2) have been established by X-ray diffraction.
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Affiliation(s)
- José Ruiz
- Departamento de Química Inorgánica, Universidad de Murcia, E-30071, Murcia, Spain. ;
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Ruiz J, Martínez MT, Florenciano F, Rodríguez V, López G, Pérez J, Chaloner PA, Hitchcock PB. Insertion reactions of SO2into Pd–OR bonds: preparation of alkyl sulfito complexes of palladium(ii). Dalton Trans 2004:929-32. [PMID: 15252480 DOI: 10.1039/b316697j] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mononuclear palladium-hydroxo complexes of the type [Pd(N-N)(C6F5)(OH)][(N-N = 2,2'-bipyridine (bipy), 4,4'-dimethyl-2,2'-bipyridine (Me2bipy), or N,N,N',N'-tetramethylethylenediamine (tmeda) react with SO2(1 atm) at room temperature in alcohol (methanol, ethanol, propanol or isopropanol) to yield alkyl sulfito palladium complexes [Pd(N-N)(C6F5)(SO2OR)](R = Me, Et, Pr or iPr). Similar alkyl sulfito complexes [Pd(N-N)(C6F5)(SO2OR)](N-N = bis(3,5-dimethylpyrazol-1-yl)methane); R = Me or Et) are obtained when [Pd(N-N)(C6F5)Cl] is treated with KOH in the corresponding alcohol ROH and SO2 is bubbled through the solution. The reaction of [Pd(bipy)(C6F5)(OH)] with SO2 in tetrahydrofuran gives [Pd(N-N)(C6F5)(SO2OH)]. The X-ray diffraction study of [Pd(tmeda)(C6F5)(SO2OPr)] has established the sulfur coordination of the propyl sulfito ligand.
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Affiliation(s)
- José Ruiz
- Departamento de Química Inorgánica, Facultad de Quimica, Universidad de Murcia, 30071 Murcia, Spain.
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