1
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Jackman KMK, Liang G, Boyle PD, Zimmerman PM, Blacquiere JM. Changes in ligand coordination mode induce bimetallic C-C coupling pathways. Dalton Trans 2022; 51:3977-3991. [PMID: 35174382 PMCID: PMC8937615 DOI: 10.1039/d2dt00322h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon-carbon coupling is one of the most powerful tools in the organic synthesis arsenal. Known methodologies primarily exploit monometallic Pd0/PdII catalytic mechanisms to give new C-C bonds. Bimetallic C-C coupling mechanisms that involve a PdI/PdII redox cycle, remain underexplored. Thus, a detailed mechnaistic understanding is imperative for the development of new bimetallic catalysts. Previously, a PdII-Me dimer (1) supported by L1, which has phosphine and 1-azaallyl donor groups, underwent reductive elimination to give ethane, a PdI dimer, a PdII monometallic complex, and Pd black. Herein, a comprehensive experimental and computational study of the reactivity of 1 is presented, which reveals that the versatile coordination chemistry of L1 promotes bimetallic C-C bond formation. The phosphine 1-azaallyl ligand adopts various bridging modes to maintain the bimetallic structure throughout the C-C bond forming mechanism, which involves intramolecular methyl transfer and 1,1-reductive elimination from one of the palladium atoms. The minor byproduct, methane, likely forms through a monometallic intermediate that is sensitive to solvent C-H activation. Overall, the capacity of L1 to adopt different coordination modes promotes the bimetallic C-C coupling channel through pathways that are unattainable with statically-coordinated ligands.
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Affiliation(s)
- Kyle M K Jackman
- Department of Chemistry, University of Western Ontario, London, Canada, N6A 5B7.
| | - Guangchao Liang
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Paul D Boyle
- Department of Chemistry, University of Western Ontario, London, Canada, N6A 5B7.
| | - Paul M Zimmerman
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA.
| | - Johanna M Blacquiere
- Department of Chemistry, University of Western Ontario, London, Canada, N6A 5B7.
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2
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Chakraborty S, Kunjanpillai R, Blacque O, Berke H. Ullmann‐Type and Related Redox Reactions of Nitrosyl Molybdenum Complexes Bearing a Large‐Bite‐Angle Diphosphine. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Subrata Chakraborty
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, http://www.chem.uzh.ch/research/emeriti/berke/curriculumVitae.html
| | - Rajesh Kunjanpillai
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, http://www.chem.uzh.ch/research/emeriti/berke/curriculumVitae.html
| | - Olivier Blacque
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, http://www.chem.uzh.ch/research/emeriti/berke/curriculumVitae.html
| | - Heinz Berke
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland, http://www.chem.uzh.ch/research/emeriti/berke/curriculumVitae.html
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3
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Karunananda MK, Parmelee SR, Waldhart GW, Mankad NP. Experimental and Computational Characterization of the Transition State for C–X Bimetallic Oxidative Addition at a Cu–Fe Reaction Center. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00476] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Malkanthi K. Karunananda
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| | - Sean R. Parmelee
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| | - Greyson W. Waldhart
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, Illinois 60607, United States
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4
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5
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Pamplin CB, Rettig SJ, Patrick BO, James BR. Reactions of the Bis(dialkylphosphino)methane Complexes Pd2X2(μ-R2PCH2PR2)2 (X = halogen, R = Me or Et) with H2S, S8, COS, and CS2; Detection of Reaction Intermediates. Inorg Chem 2011; 50:8094-105. [DOI: 10.1021/ic200503d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Craig B. Pamplin
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Steven J. Rettig
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Brian O. Patrick
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
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6
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Das RK, Saha B, Rahaman SMW, Bera JK. Bimetallic catalysis involving dipalladium(I) and diruthenium(I) complexes. Chemistry 2011; 16:14459-68. [PMID: 20981670 DOI: 10.1002/chem.201001960] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Dipalladium(I) and diruthenium(I) compounds bridged by two [{(5,7-dimethyl-1,8-naphthyridin-2-yl)amino}carbonyl]ferrocene (L) ligands have been synthesized. The X-ray structures of [Pd(2)L(2)][BF(4)](2) (1) and [Ru(2)L(2)(CO)(4)][BF(4)](2) (2) reveal dinuclear structures with short metal-metal distances. In both of these structures, naphthyridine bridges the dimetal unit, and the site trans to the metal-metal bond is occupied by weakly coordinating oxygen from the amido fragment. The catalytic utilities of these bimetallic compounds are evaluated. Compound 1 is an excellent catalyst for phosphine-free, Suzuki cross-coupling reactions of aryl bromides with arylboronic acids and provides high yields in short reaction times. Compound 1 is also found to be catalytically active for aryl chlorides, although the corresponding yields are lower. A bimetallic mechanism is proposed, which involves the oxidative addition of aryl bromide across the Pd-Pd bond and the bimetallic reductive elimination of the product. Compound 1 is also an efficient catalyst for the Heck cross-coupling of aryl bromides with styrenes. The mechanism for aldehyde olefination with ethyl diazoacetate (EDA) and PPh(3), catalyzed by 2, has been fully elucidated. It is demonstrated that 2 catalyzes the formation of phosphorane utilizing EDA and PPh(3), which subsequently reacts with aldehyde to produce a new olefin and phosphine oxide. The efficacy of bimetallic complexes in catalytic organic transformations is illustrated in this work.
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Affiliation(s)
- Raj K Das
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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7
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Powers DC, Benitez D, Tkatchouk E, Goddard WA, Ritter T. Bimetallic reductive elimination from dinuclear Pd(III) complexes. J Am Chem Soc 2011; 132:14092-103. [PMID: 20858006 DOI: 10.1021/ja1036644] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In 2009, we reported C-halogen reductive elimination reactions from dinuclear Pd(III) complexes and implicated dinuclear intermediates in Pd(OAc)(2)-catalyzed C-H oxidation chemistry. Herein, we report results of a thorough experimental and theoretical investigation of the mechanism of reductive elimination from such dinuclear Pd(III) complexes, which establish the role of each metal during reductive elimination. Our results implicate reductive elimination from a complex in which the dinuclear core is intact and suggest that redox synergy between the two metals is responsible for the facile reductive elimination reactions observed.
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Affiliation(s)
- David C Powers
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, USA
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8
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Fernández A, López-Torres M, Castro-Juiz S, Merino M, Vázquez-García D, Vila JM, Fernández JJ. Dimetalated Crown Ether Schiff Base Palladacycles. Influence of the Carbon Chain Length on the Coordination Mode of Bidentate Phosphines. Crystal and Molecular Structure of the Novel Complex [Pd2{1,4-[C(H)═N{9,10-(C8H16O5)C6H3}]2C6H2-C2,C5}(Cl)2{μ-Ph2P(CH2)5PPh2}2]. Organometallics 2011. [DOI: 10.1021/om100833w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alberto Fernández
- Departamento de Química Fundamental, Universidade da Coruña, E-15071 La Coruña, Spain
| | | | - Samuel Castro-Juiz
- Departamento de Química Fundamental, Universidade da Coruña, E-15071 La Coruña, Spain
| | - Manuel Merino
- Departamento de Química Fundamental, Universidade da Coruña, E-15071 La Coruña, Spain
| | - Digna Vázquez-García
- Departamento de Química Fundamental, Universidade da Coruña, E-15071 La Coruña, Spain
| | - José M. Vila
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Jesús J. Fernández
- Departamento de Química Fundamental, Universidade da Coruña, E-15071 La Coruña, Spain
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9
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López-Valbuena JM, Escudero-Adan EC, Benet-Buchholz J, Freixa Z, van Leeuwen PWNM. An approach to bimetallic catalysts by ligand design. Dalton Trans 2010; 39:8560-74. [PMID: 20697645 DOI: 10.1039/c0dt00011f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New diphosphines based on benzofurobenzofuran and dibenzodioxocin backbones, forming exclusively bimetallic complexes were designed and synthesized. Depending on the ligand to metal ratio, face-to-face bimetallic complexes or syn-chloride bridged dimeric complexes were formed as main reaction products. The structures of the rhodium complexes of the new ligands 4, 7, 10, 13, 16 were established in solution by NMR, IR, and MS spectroscopy. The molecular structures of the syn-chloride bridged dimeric complexes [Rh(2)(CO)(2)(mu-Cl)(2)(4)] (22), [Rh(2)(CO)(2)(mu-Cl)(2)(10)] (24), and the face-to-face bimetallic complexes [Rh(CO)Cl(4)](2) (17), [Rh(CO)Cl(10)](2) (19), and [Rh(CO)Cl(13)](2) (20) were confirmed by X-ray crystallography. Ligands 4, 7, 10, 13, 16, and SPANphos were tested in rhodium catalyzed methanol carbonylation at 150 degrees C and 22 bar of CO gas, showing high activities under catalytic conditions.
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Affiliation(s)
- Josep M López-Valbuena
- Institute of Chemical Research of Catalonia (ICIQ), Avgda. Països Catalans 16, Tarragona, Spain
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10
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Yih KH, Lee GH. Thiocarbarmoyl-Assisted Formation of a New Type of α- and β-Isomer Paddlewheel Pd24+ Compounds. Synthesis, Characterization, and Crystal Structures of [Pd(η1-SCNMe2)(η2-Tp)(PPh3)], [Pd2(μ-Hdppa)2(μ-SCNMe2)2][Cl]2, [Pd2(μ-dppa)2(μ-SCNMe2)2], and [Pd{η2-S2P(OEt)2}]2(μ-dppa)(μ-SCNMe2). Organometallics 2010. [DOI: 10.1021/om100558m] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kuang-Hway Yih
- Department of Applied Cosmetology, Hungkuang University Shalu, Taichung, Taiwan 433, Republic of China
| | - Gene-Hsiang Lee
- Instrumentation Center, College of Science, National Taiwan University, Taiwan, Republic of China
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11
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Lumbreras E, Sisler EM, Shelby QD. Synthesis, X-ray crystal structure, and reactivity of Pd2(μ-dotpm)2 (dotpm=bis(di-ortho-tolylphosphino)methane). J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2009.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Pan QJ, Zhou X, Zhang HX, Fu HG. Theoretical studies on spectroscopic properties of binuclear palladium(II) halide with phosphine ligands. J Photochem Photobiol A Chem 2007. [DOI: 10.1016/j.jphotochem.2006.12.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Azerraf C, Cohen S, Gelman D. Roof-Shaped Halide-Bridged Bimetallic Complexes via Ring Expansion Reaction. Inorg Chem 2006; 45:7010-7. [PMID: 16903761 DOI: 10.1021/ic060700q] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Binucleating behavior of rigid triptycene-based ligands has been studied. It has been demonstrated that trans-spanned transition-metal mononuclear complexes bearing 1,8-bis(diisopropylphosphino)triptycene (L1) and 1-diisopropylphosphino-8-diphenylphosphinotriptycene (L2) react with an appropriate transition-metal precursor via a ring-expansion pathway to form unusual bimetallic quasi-closed structures. New palladium and rhodium complexes featuring strongly bent (ca. 115 degrees ) M2(mu-Cl2) cores with very closely spanned metal centers (less than 3 A) have been prepared using the described ring-expansion reaction and have been fully characterized. Despite a constrained arrangement of the binuclear system, halogen bridges in all new compounds were stable in both the solid state and solution showing no tendency for dissociation even in the presence of added Lewis bases. Spontaneous resolution of the dissymmetric Pd2(mu-Cl)2Cl2(1-diisopropylphosphino-8-diphenylphosphinotriptycene) (2) into enantiopure antipodes is discussed as well.
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Affiliation(s)
- Clarite Azerraf
- Department of Organic Chemistry, The Hebrew University of Jerusalem, Jerusalem, 91904 Israel
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14
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Electrochemical reduction properties of A-frame compounds and crystal structure of Pd2(dppm)2(Me)2(Br)+ dimer. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.09.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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16
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Braun T, Steffen A, Schorlemer V, Neumann B, Stammler HG. Routes to unique palladium A-frame complexes with a bridging fluoro-ligand. Dalton Trans 2005:3331-6. [PMID: 16193151 DOI: 10.1039/b509032f] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of a toluene solution of [PdMe(2)(Cy(2)PCH(2)PCy(2))](1) with pentafluoropyridine in the presence of traces of water affords the generation of the A-frame complexes [(PdMe)(2){mu-kappa(2)(P,P)Cy(2)PCH(2)PCy(2)}(2)(mu-F)][SiMeF(4)]() and [(PdMe)(2){mu-kappa(2)(P,P)Cy(2)PCH(2)PCy(2)}(2)(mu-F)][OC(5)NF(4)](2b). If the reaction is performed in an NMR tube equipped with a PFA inliner, complex 2b is produced, only. Treatment of 1 with pentafluoropyridine in the presence of an excess water yields the pyridyloxy complex [PdMe(OC(5)NF(4))(Cy(2)PCH(2)PCy(2))](3). Compound [(PdMe)(2){mu-kappa(2)(P,P)Cy(2)PCH(2)PCy(2)}(2)(mu-F)][FHF](2c) bearing a bifluoride anion instead of SiMeF(4)(-) or OC(5)NF(4)(-) can be generated by reaction of 1 with substoichiometric amounts of Et(3)N.3HF. The analogous complex [(PdMe)(2){mu-kappa(2)(P,P)Ph(2)PCH(2)PPh(2)}(2)(mu-F)][FHF] (5c) has been synthesized by addition of Ph(2)PCH(2)PPh(2) to a solution of [PdMe(2)(Me(2)NCH(2)CH(2)NMe(2))](4) in THF and subsequent treatment of the reaction mixture with Et(3)N.3HF. The structure of the A-frame complex 5c has been determined by X-ray crystallography.
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Affiliation(s)
- Thomas Braun
- Fakultät für Chemie, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany.
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17
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Besenyei G, Párkányi L, Szalontai G, Holly S, Pápai I, Keresztury G, Nagy A. N-benzoylimido complexes of palladium. Synthesis, structural characterisation and structure–reactivity relationship. Dalton Trans 2004:2041-50. [PMID: 15252593 DOI: 10.1039/b403200d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Benzoyl azides, ArC(O)N3, 2, (Ar = phenyl or substituted phenyl), react with [Pd2Cl2(dppm)2], 1, [dppm = bis(diphenylphosphino)methane] with the formation of novel [Pd2Cl2(mu-NC(O)Ar)(dppm)2], 3, benzoylnitrene complexes that were structurally characterised by multinuclear magnetic resonance and IR spectroscopy and, in several instances, by single crystal X-ray diffraction. As shown by crystallographic studies, the C2P4Pd2 rings adopt extended twist-boat conformations with methylene groups bending towards the bridging benzoylimido moieties. X-ray diffraction studies have revealed the chiral nature of the imido complexes, the chiral element being the propeller-like C2P4Pd2 ring. Structural data accumulated on complexes 3 such as short C-N distances (1.32 A), elongated C=O bonds (1.30 A) as well as the outstandingly high barrier to internal rotation around the N-C(O) linkage (88.3 kJ mol(-1)) are in line with extensive ppi-ppi interaction between the bridging nitrogen and the carbonyl carbon atoms. Theoretical calculations indicate an electron shift from the dimer towards the apical nitrogen atom, which, in turn, facilitates the donation of electrons towards the carbonyl moiety. To elucidate the structure-reactivity relationship of benzoyl azides towards 1, crystallographic and solution IR spectroscopic studies were carried out on a series of para-substituted benzoyl azides. The reaction obeys the Hammett equation. The large positive value of the reaction constant indicates that the azides act as electrophiles in the reaction studied. The enhanced reactivity of 2-nitrobenzoyl azide has been attributed to a decreased conjugation of the phenyl and carbonyl moieties in this reagent.
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Affiliation(s)
- Gábor Besenyei
- Institute of Chemistry, Chemical Research Center, Hungarian Academy of Sciences, 1525 Budapest Pf. 17.
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18
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Burrows AD, Mahon MF, Nolan SP, Varrone M. Diphosphines Possessing Electronically Different Donor Groups: Synthesis and Coordination Chemistry of the Unsymmetrical Di(N-pyrrolyl)phosphino-Functionalized dppm Analogue Ph2PCH2P(NC4H4)2. Inorg Chem 2003; 42:7227-38. [PMID: 14577792 DOI: 10.1021/ic034487z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The unsymmetrical diphosphinomethane ligand Ph(2)PCH(2)P(NC(4)H(4))(2) L has been prepared from the reaction of Ph(2)PCH(2)Li with PCl(NC(4)H(4))(2). The diphenylphosphino group can be selectively oxidized with sulfur to give Ph(2)P(S)CH(2)P(NC(4)H(4))(2) 1. The reaction of L with [MCl(2)(cod)] (M = Pd, Pt) gives the chelate complexes [MCl(2)(L-kappa(2)P,P')] (2, M = Pd; 3, M = Pt) in which the M-P bond to the di(N-pyrrolyl)phosphino group is shorter than that to the corresponding diphenylphosphino group. However, the shorter Pd-P bond is cleaved on reaction of 2 with an additional 1 equiv of L to give [PdCl(2)(L-kappa(1)P)(2)] 4. Complex 4 reacts with [PdCl(2)(cod)] to regenerate 2, and with [Pd(2)(dba)(3)].CHCl(3) to give the palladium(I) dimer [Pd(2)Cl(2)(mu-L)(2)] 5, which exists in solution and the solid state as a 1:1 mixture of head-to-head (HH) and head-to-tail (HT) isomers. The palladium(II) dimer [Pd(2)Cl(2)(CH(3))(2)(mu-L)(2)] 6, formed by the reaction of [PdCl(CH(3))(cod)] with L, also exists in solution as a mixture of HH and HT isomers, although in this case the HT isomer prevails at low temperature and crystallizes preferentially. Complex 6 reacts with TlPF(6) to give the A-frame complex [Pd(2)(CH(3))(2)(mu-Cl)(mu-L)(2)]PF(6) 7. The reaction of L with [RuCp*(mu(3)-Cl)](4) leads to the dimer [Ru(2)Cp*(2)(mu-Cl)(2)(mu-L)] 8, for which the enthalpy of reaction has been measured. The reaction of L with [Rh(mu-Cl)(cod)](2) gives a mixture of compounds from which the dimer [Rh(2)(mu-Cl)(cod)(2)(mu-L)]PF(6) 9 can be isolated. The crystal structures of 2.CHCl(3), 3.CH(2)Cl(2), 4, 5.(1)/(4)CH(2)Cl(2), 6, 7.2CH(2)Cl(2), 8, and 9.CH(2)Cl(2) are reported.
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Affiliation(s)
- Andrew D Burrows
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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19
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Evrard D, Drouin M, Mugnier Y, Harvey PD. Reactivity and electrochemical properties of the d8–d8 Pd2(dppm)2(Cl)2(Me)2 towards MeI. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01554-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Nair P, Anderson GK, Rath NP. Palladium and Platinum Complexes Containing the Linear Tetraphosphine Bis[((diphenylphosphino)ethyl)phenylphosphino]methane. Organometallics 2003. [DOI: 10.1021/om0209069] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Padma Nair
- Department of Chemistry and Biochemistry, University of MissouriSt. Louis, 8001 Natural Bridge Road, St. Louis, Missouri 63121
| | - Gordon K. Anderson
- Department of Chemistry and Biochemistry, University of MissouriSt. Louis, 8001 Natural Bridge Road, St. Louis, Missouri 63121
| | - Nigam P. Rath
- Department of Chemistry and Biochemistry, University of MissouriSt. Louis, 8001 Natural Bridge Road, St. Louis, Missouri 63121
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Vicente J, Arcas A, Bautista D, Ramı́rez de Arellano M. Mono- and di-nuclear complexes of ortho-palladated and -platinated 4,4′-dimethylazobenzene with bis(diphenylphosphino)methane. More data on transphobia. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(02)01729-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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22
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Nair P, Anderson GK, Rath NP. Bimetallic platinum complexes containing linear tetraphosphine ligands. INORG CHEM COMMUN 2002. [DOI: 10.1016/s1387-7003(02)00516-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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