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Nguyen TA, Roger J, Nasrallah H, Rampazzi V, Fournier S, Cattey H, Sosa Carrizo ED, Fleurat-Lessard P, Devillers CH, Pirio N, Lucas D, Hierso JC. Gold(I) Complexes Nuclearity in Constrained Ferrocenyl Diphosphines: Dramatic Effect in Gold-Catalyzed Enyne Cycloisomerization. Chem Asian J 2020; 15:2879-2885. [PMID: 32687260 DOI: 10.1002/asia.202000579] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/16/2020] [Indexed: 11/07/2022]
Abstract
Di-tert-butylated-bis(phosphino)ferrocene ligands bearing phosphino substituents R (R=phenyl, cyclohexyl, iso-propyl, mesityl, or furyl) allow tuning the selective formation of Au(I) halide complexes. Thus, dinuclear linear two-coordinate, but also rare mononuclear trigonal three-coordinate and tetrahedral four-coordinate complexes were formed upon tuning of the conditions. Both Au(I) chloride and rarer Au(I) iodide complexes were synthesized, and their X-ray diffraction analysis are reported. The significance of the control of structure and nuclearity in Au(I) complexes is further illustrated herein by its strong effect on the efficiency and selectivity of gold-catalysed cycloisomerization. Cationic linear digold(I) bis(dicyclohexylphosphino) ferrocenes outperform other catalysts in the demanding regioselective cycloisomerization of enyne sulphonamides into cyclohexadienes. Conversely, tetrahedral and trigonal cationic monogold(I) complexes were found incompetent for enyne cycloaddition. We used the two-coordinate linear electron-rich Au(I) complex 2 b (R=Cy) to extend the scope of selective intramolecular cycloaddition of different 1,6-enyne sulfonylamines with high activity and excellent selectivity to the endo cyclohexadiene products.
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Affiliation(s)
- Tuan-Anh Nguyen
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Julien Roger
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Houssein Nasrallah
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Vincent Rampazzi
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Sophie Fournier
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Hélène Cattey
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - E Daiann Sosa Carrizo
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Paul Fleurat-Lessard
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Charles H Devillers
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Nadine Pirio
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Dominique Lucas
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
| | - Jean-Cyrille Hierso
- Université de Bourgogne, Institut de Chimie Moléculaire de l'Université de Bourgogne UMR-CNRS 6302 -, Université Bourgogne Franche-Comté (UBFC) 9, avenue Alain Savary, 21078, Dijon, France
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2
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Rampazzi V, Roger J, Amardeil R, Penouilh MJ, Richard P, Fleurat-Lessard P, Hierso JC. Gold(I) Complexes of Ferrocenyl Polyphosphines: Aurophilic Gold Chloride Formation and Phosphine-Concerted Shuttling of a Dinuclear [ClAu···AuCl] Fragment. Inorg Chem 2016; 55:10907-10921. [PMID: 27748585 DOI: 10.1021/acs.inorgchem.6b01318] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A smart steric control of the metallocene backbone in bis- and poly(phosphino)ferrocene ligands favors intramolecular aurophilic interactions between [AuCl] fragments in polynuclear gold(I) complexes. We synthesized and characterized by multinuclear NMR and X-ray diffraction analysis mono-, di-, and polynuclear gold complexes of constrained ferrocenyl diphosphines, which bear either bulky tert-butyl groups or more flexible siloxane substituents at the cyclopentadienyl rings. The complexes meso-1,1'-bis(diphenylphosphino)-3,3'-di-tert-butylferrocene (4-m), rac-1,1'-bis[bis(5-methyl-2-furyl)phosphino]-3,3'-di-tert-butylferrocene (5-r), and rac-1,1'-bis(diphenylphosphino)-3,3'-bis[(tri-iso-propylsilyl)oxy]ferrocene (6-r) were used to form dinuclear gold complexes. Coordination of tert-butylated ferrocenyl phosphines generated aurophilic interactions in the corresponding dinuclear gold complexes, contrary to gold(I) complexes reported with 1,1'-bis(diphenylphosphino)ferrocene. The structurally related tetraphosphine 1,1',2,2'-tetrakis(diphenylphosphino)-4,4'-di-tert-butylferrocene (11) also gave access to mononuclear, dinuclear, and the original trinuclear gold chloride aurophilic complexes in which 14e- to 16e- gold centers coexist. In such complexes, nonbonded ("through-space") 31P-31P' nuclear spin couplings were evidenced by high-resolution NMR. In these interactions nuclear spin information is transferred between the lone-pair electron of an uncoordinated phosphorus P and a phosphorus P' that is involved in a σ covalent bond Au-P'. The dinuclear aurophilic complex displayed a concerted shuttling of its [ClAu···AuCl] fragment between the four phosphorus donors of the tetraphosphine ligand. Thus, an aurophilic Au···Au bond, which is assumed to be a weak energy interaction, can be conserved within a dynamic shuttling process at high temperature involving an intramolecular coordination-decoordination process of digold(I) at phosphorus atoms.
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Affiliation(s)
- Vincent Rampazzi
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Régine Amardeil
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Marie-José Penouilh
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Philippe Richard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France
| | - Jean-Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB, UMR 6302, CNRS), Université de Bourgogne Franche-Comté , 9 Avenue Alain Savary, 21078 Dijon, France.,Institut Universitaire de France (IUF) , 103 Boulevard Saint Michel, 75005 Paris Cedex, France
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3
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Hartlaub SF, Lauricella NK, Ryczek CN, Furneaux AG, Melton JD, Piro NA, Kassel WS, Nataro C. Late Transition Metal Compounds with 1,1′‐Bis(phosphino)ferrocene Ligands. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601099] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sage F. Hartlaub
- Department of Chemistry Lafayette CollegeHugel Science CenterLafayette College18042EastonPAUSA
| | - Nicole K. Lauricella
- Department of Chemistry Lafayette CollegeHugel Science CenterLafayette College18042EastonPAUSA
| | - Catherine N. Ryczek
- Department of Chemistry Lafayette CollegeHugel Science CenterLafayette College18042EastonPAUSA
| | - Aliza G. Furneaux
- Department of Chemistry Lafayette CollegeHugel Science CenterLafayette College18042EastonPAUSA
| | - Jon D. Melton
- Department of Chemistry and BiochemistryMessiah CollegeOne College Avenue17055MechanicsburgPAUSA
| | - Nicholas A. Piro
- Department of ChemistryVillanova University800 E. Lancaster Avenue19085VillanovaPAUSA
| | - W. S. Kassel
- Department of ChemistryVillanova University800 E. Lancaster Avenue19085VillanovaPAUSA
| | - Chip Nataro
- Department of Chemistry Lafayette CollegeHugel Science CenterLafayette College18042EastonPAUSA
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4
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Furneaux AG, Piro NA, Hernández Sánchez R, Gramigna KM, Fey N, Robinson MJ, Kassel WS, Nataro C. Spectroscopic, structural and computational analysis of [Re(CO)3(dippM)Br]n+ (dippM = 1,1′-bis(diiso-propylphosphino)metallocene, M = Fe, n = 0 or 1; M = Co, n = 1). Dalton Trans 2016; 45:4819-27. [DOI: 10.1039/c5dt04721h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Re(CO)3(dippf)Br]+: the first structurally characterized complex of a coordinated bis(phosphino)ferrocenium ligand.
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Affiliation(s)
| | | | | | | | - Natalie Fey
- School of Chemistry
- University of Bristol
- Bristol BS8 1TS
- UK
| | | | | | - Chip Nataro
- Department of Chemistry
- Lafayette College
- Easton
- USA
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5
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Arambula JF, McCall R, Sidoran KJ, Magda D, Mitchell NA, Bielawski CW, Lynch VM, Sessler JL, Arumugam K. Targeting Antioxidant Pathways with Ferrocenylated N-Heterocyclic Carbene Supported Gold(I) Complexes in A549 Lung Cancer Cells. Chem Sci 2015; 7:1245-1256. [PMID: 26918111 PMCID: PMC4762604 DOI: 10.1039/c5sc03519h] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Ferrocenylated-Au(i) carbenes were designed, synthesized, and studied for their ability to generate reactive oxygen species and target antioxidant pathways via multiple mechanisms.
Ferrocene containing N-heterocyclic carbene (NHC) ligated gold(i) complexes of the type [Au(NHC)2]+ were prepared and found to be capable of regulating the formation of reactive oxygen species (ROS) via multiple mechanisms. Single crystal X-ray analysis of bis(1-(ferrocenylmethyl)-3-mesitylimidazol-2-ylidene)-gold(i) chloride (5) and bis(1,3-di(ferrocenylmethyl)imidazol-2-ylidene)-gold(i) chloride (6) revealed a quasi-linear geometry around the gold(i) centers (i.e., the C–Au–C bond angle were measured to be ∼177° and all the Au–Ccarbene bonds distances were in the range of 2.00 (7)–2.03 (1) Å). A series of cell studies indicated that cell proliferation inhibition and ROS generation were directly proportional to the amount of ferrocene contained within the [Au(NHC)2]+ complexes (IC50 of 6 < 5 < bis(1-benzyl-3-mesitylimidazol-2-ylidene)-gold(i) chloride (4)). Complexes 4–6 were also confirmed to inhibit thioredoxin reductase as inferred from lipoate reduction assays and increased chelatable intracellular zinc concentrations. RNA microarray gene expression assays revealed that 6 induces endoplasmic reticulum stress response pathways as a result of ROS increase.
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Affiliation(s)
- J F Arambula
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia, 30460, USA
| | - R McCall
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia, 30460, USA
| | - K J Sidoran
- Department of Chemistry, 3261 West State Road, St. Bonaventure University, New York, 14778
| | - D Magda
- Lumiphore, Inc., Berkeley, California, 94710, USA
| | - N A Mitchell
- Department of Health Sciences, Gettysburg College, Gettysburg, PA 17325-1400
| | - C W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 689-798, Republic of Korea; Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 689-798, Republic of Korea
| | - V M Lynch
- Department of Chemistry, University of Texas at Austin, Austin, Texas, 78712, USA
| | - J L Sessler
- Department of Chemistry, University of Texas at Austin, Austin, Texas, 78712, USA
| | - K Arumugam
- Department of Chemistry, Wright State University, 3640 Colonel Glenn Hwy, Dayton, Ohio, 45435, USA
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6
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Štěpnička P, Císařová I. Synthesis, molecular structure and electrochemistry of gold(I) complexes with 1-(diphenylphosphino)-1′-[(diphenylphosphino)methyl]ferrocene. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.06.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Heterobimetallic compounds [Ru(η5-Cp)(dppf)X] (X = Cl, Br, I and N3): synthesis, electrochemical analysis, and the crystal structure of [Ru(η5-Cp)(dppf)I] [dppf = 1,1′-bis(diphenylphosphino)ferrocene]. TRANSIT METAL CHEM 2009. [DOI: 10.1007/s11243-009-9286-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Kahn SL, Breheney MK, Martinak SL, Fosbenner SM, Seibert AR, Kassel WS, Dougherty WG, Nataro C. Synthesis, Characterization, and Electrochemistry of Compounds Containing 1-Diphenylphosphino-1′-(di-tert-butylphosphino)ferrocene (dppdtbpf). Organometallics 2009. [DOI: 10.1021/om800850c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sarah L. Kahn
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - Meghan K. Breheney
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - Sarah L. Martinak
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - Stephanie M. Fosbenner
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - Ashley R. Seibert
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - W. Scott Kassel
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - William G. Dougherty
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
| | - Chip Nataro
- Department of Chemistry, Hugel Science Center, Lafayette College, Easton, Pennsylvania 18042, and Department of Chemistry, Villanova University, Villanova, Pennsylvania 19085
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9
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Horvath UEI, Bentivoglio G, Hummel M, Schottenberger H, Wurst K, Nell MJ, van Rensburg CEJ, Cronje S, Raubenheimer HG. A cytotoxic bis(carbene)gold(i) complex of ferrocenyl complexes: synthesis and structural characterisation. NEW J CHEM 2008. [DOI: 10.1039/b713917a] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Petraccone L, Erra E, Messere A, Montesarchio D, Piccialli G, Barone G, Giancola C. Physico-chemical studies of a DNA triplex containing a new ferrocenemethyl-thymidine residue in the third strand. Biophys Chem 2003; 104:259-70. [PMID: 12834844 DOI: 10.1016/s0301-4622(02)00380-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stability of a 16-mer DNA triple helix containing a 3-N(ferrocenemethyl)-thymidine residue in the third strand has been investigated in comparison with the unmodified triplex of the same sequence. A complete physico-chemical characterization of the two triple helices on changing the pH by means of calorimetry, circular dichroism and molecular modeling is therefore reported. The thermodynamic parameters were obtained in the pH range 5.5-7.2 by differential scanning calorimetry (DSC). For both triplexes the T(m) and Delta H degrees (T(m)) values increase on decreasing the pH. In the pH range 7.2-6.0 the triplex containing the ferrocenemethyl nucleoside is less stable than the unmodified one, whereas the modified triplex becomes more stable at pH 5.5. Such difference in stability at each pH value is overwhelmingly enthalpic in origin. CD spectra show conformational changes on decreasing the pH for both the triplexes. By spectroscopic pH titration the apparent pK(a) values of the cytosines in the two triplexes could be estimated, with the cytosines in the TFO containing the ferrocenemethyl residue having lower apparent pK(a) values. These results are consistent with the calorimetric data, showing a decrease of the thermodynamic parameters in the pH range 7.2-6.0 and an increase at pH 5.5 for the ferrocenylated triplex with respect to the unmodified one. The thermodynamic and spectroscopic data are also discussed in relation to molecular models.
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Affiliation(s)
- L Petraccone
- Dipartimento di Chimica, Università Federico II di Napoli, Via Cintia 4, 80126, Naples, Italy
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11
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Crespo O, Gimeno MC, Laguna A. Bis(diphenylphosphino)-ferrocene or -dicarba-closo-dodecaborane as ligands in gold and silver chemistry. Appl Organomet Chem 2000. [DOI: 10.1002/1099-0739(200010)14:10<644::aid-aoc53>3.0.co;2-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Housecroft CE, Nixon DM, Rheingold AL. Preferential formation of monogold(I) derivatives of [HRu3W(η5-C5H5)(CO)11BH] permits specificity in cluster linkage reactions: the crystal structure of [HRu3W(η5-C5H5)(CO)11B(AuPPh3)]. Polyhedron 1999. [DOI: 10.1016/s0277-5387(99)00138-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Gerbase AE, Vichi EJ, Stein E, Amaral L, Vasquez A, Hörner M, Maichle-Mössmer C. Preparation, characterization and electrochemical studies of 1,1′-bis(diphenylphosphino) ferrocene (dppf) derivatives. Crystal structure of [dppfCo(NO)2][SbF6]. Inorganica Chim Acta 1997. [DOI: 10.1016/s0020-1693(97)05527-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Low PM, Zhang ZY, Mak TC, Hor TA. General synthesis of ferrocenylphosphine-bridged digold carboxylato complexes crystal and molecular structure of Au2(η1-CF3CO2)2(η-dppf) · C6H14 (dppf = Fe(C5H4PPh2)2). J Organomet Chem 1997. [DOI: 10.1016/s0022-328x(97)00094-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Galsworthy JR, Housecroft CE, Rheingold AL. Reactions of [RhRu3H(η5-C5Me5)(CO)9BH2] with didentate phosphines and the synthesis and crystal structure of [RhRu3H2(η5-C5Me5)(CO)8(µ-dppf-P,P′)AuB][dppf = 1,1′-bis(diphenylphosphino)ferrocene]. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/dt9960002917] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Hsu SC, Yeh WY, Chiang MY. Syntheses and characterization of tricarbonyl tungsten complexes containing 1,1′-bis(diphenylphosphino) ferrocene ligand. J Organomet Chem 1995. [DOI: 10.1016/0022-328x(95)05413-j] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Galsworthy JR, Housecroft CE, Rheingold AL. Unexpected gold-containing boride clusters formed from the reactions of [RhRu3H(η5-C5Me5)(CO)9BH]–with gold(I) phosphine derivatives: crystal structures of [RhRu3H(η5-C5Me5)(CO)9B{Au(PPh3)}2(AuCl)]·CH2Cl2and [RhRu3H(η5-C5Me5)(CO)9B{Au2(dppf)}(AuCl)]·CH2Cl2[dppf = 1,1′-bis(diphenylphosphino)ferrocene]. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/dt9950002639] [Citation(s) in RCA: 15] [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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18
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Ligand substitution reaction of (μ-H)Os3(CO)10(μ-COMe) with 1,1'-bis(diphenylphosphino) ferrocene. J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)85024-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Lai-Tee P, Hor T, Zhong-Yuan Z, Mak TC. 1,1′-Bis(diphenylphosphino)ferrocene complexes of gold(I). Polymeric [AuCl(μ-dppf)]n and dimeric [Au2(dppf-P,P′)2(μ-dppf)](NO3)2. J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)88080-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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21
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Watson WH, Nagl A, Hwang S, Richmond MG. 1,1′-Bis(diphenylphosphino)ferrocene ligand substitution in the benzylidyne-capped cluster PhCCo3(CO)9. Synthesis, X-ray structure, and redox reactivity of PhCCo3(CO)7(dppf). J Organomet Chem 1993. [DOI: 10.1016/0022-328x(93)80203-n] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Draper SM, Housecroft CE, Rheingold AL. Synthesis and solution properties of the boron-containing clusters HM4(CO)12BAu2(dppf) (M Fe or Ru) and the competitive formation of HM4(CO)12BHAu2(dppf) for M Ru (dppf = 1,1′-bis(diphenylphosphino)ferrocene). Molecular structure of HRu4(CO)12BAu2(dppf) ·2 CHCl3. J Organomet Chem 1992. [DOI: 10.1016/0022-328x(92)83455-q] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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