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Mondal B, Bhattacharya S, Ghosh S. Heterometallic boride clusters of group 6 and 9 transition metals. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.06.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Thakur A, Sao S, Ramkumar V, Ghosh S. Novel Class of Heterometallic Cubane and Boride Clusters Containing Heavier Group 16 Elements. Inorg Chem 2012; 51:8322-30. [DOI: 10.1021/ic3008602] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arunabha Thakur
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Soumik Sao
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - V. Ramkumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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Bose SK, Geetharani K, Sahoo S, Reddy KHK, Varghese B, Jemmis ED, Ghosh S. Synthesis, Characterization, and Electronic Structure of New Type of Heterometallic Boride Clusters. Inorg Chem 2011; 50:9414-22. [DOI: 10.1021/ic201046g] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shubhankar Kumar Bose
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - K. Geetharani
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Satyanarayan Sahoo
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - K. Hari Krishna Reddy
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 022, India
| | - Babu Varghese
- Sophisticated Analytical Instruments Facility, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Eluvathingal D. Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 022, India
- Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, Kerala 695 016, India
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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Melník M, Holloway CE. Crystallographic and structural analysis of iron heterometallic hexa- and heptanuclear complexes. REV INORG CHEM 2011. [DOI: 10.1515/revic.2011.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Braunschweig H, Radacki K, Rais D, Seeler F. Boron in the Coordination Spheres of Three Transition-Metal Atoms: Syntheses and Structures of Metalloborylenes Stabilized by a Transition-Metal Base. Angew Chem Int Ed Engl 2006; 45:1066-9. [PMID: 16389608 DOI: 10.1002/anie.200503807] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie, Bayerische Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
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Braunschweig H, Radacki K, Rais D, Seeler F. Bor in der Koordinationssphäre von drei Übergangsmetallen – Synthese und Strukturen von Metall-Base-stabilisierten Metalloborylenkomplexen. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503807] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Improved Synthesis of Tetra- and Hexaosmium Carbonyl Boride Cluster HOs 4(CO) 12BH 2and H 3Os 6(CO) 16B. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2004. [DOI: 10.5012/jkcs.2004.48.6.659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Borylenes as Ligands to Transition Metals. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2004. [DOI: 10.1016/s0065-3055(03)51004-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Affiliation(s)
- Holger Braunschweig
- Department of Chemistry, Imperial College London SW7 2AY, UK, Fax: (internat.) + 44‐20/7594‐5900
| | - Miriam Colling
- Institut für Anorganische Chemie der Technischen Hochschule Templergraben 55, 52056 Aachen, Germany
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Braunschweig H, Colling M, Kollann C, Merz K, Radacki K. [(OC)5Cr=BSi(SiMe3)3]: Ein terminaler Borylenkomplex mit elektronisch ungesättigtem Boratom. Angew Chem Int Ed Engl 2001. [DOI: 10.1002/1521-3757(20011119)113:22<4327::aid-ange4327>3.0.co;2-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Braunschweig H, Colling M, Kollann C, Merz K, Radacki K. [(OC)5Cr=BSi(SiMe3)3]: A Terminal Borylene Complex with an Electronically Unsaturated Boron Atom. Angew Chem Int Ed Engl 2001; 40:4198-4200. [DOI: 10.1002/1521-3773(20011119)40:22<4198::aid-anie4198>3.0.co;2-e] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2001] [Indexed: 11/07/2022]
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Chung JH, Jordan G, Meyers EA, Shore SG. A new type of hexaosmium boride cluster, H3Os6(CO)16B, that does not conform to electron counting rules. Inorg Chem 2000; 39:568-72. [PMID: 11229578 DOI: 10.1021/ic991113q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new type of hexaosmium boride cluster, H3Os6(CO)16B, was produced in the thermolysis of H3Os3(CO)9(BCO). This complex is an 86 valence electron cluster, but the Os6 framework does not possess one of the geometries previously observed for Os6 clusters that have 86 valence electrons. [HOs6(CO)18]- and [Os6(CO)18]2- have octahedral frameworks while that of H2Os6(CO)18 is a face-capped square pyramid. The Os6 framework of H3Os6(CO)16B can be viewed as being derived from a pentagonal bipyramid that is missing one equatorial vertex. It contains an interior boron atom. Alternatively, it can be viewed like the 84 valence cluster Os6(CO)18 as either a bicapped tetrahedron, with a boron atom residing on the edge of the tetrahedron that is common to the capped faces, or a face-capped trigonal bipyramid, with the boron atom on an equatorial edge of the bipyramid that is also an edge of the capped face. H3Os6(CO)16B was characterized by 1H, and 11B, 13C NMR, IR, and mass spectroscopies and single-crystal X-ray diffraction analysis. The molecular structure was determined from two separate crystals. The analysis of each crystal yielded virtually identical structures, but their volumes differed by 36 A3 due to differences in packing in the unit cell. Data for crystal I of H3Os6(CO)16B: monoclinic P2(1/n), a = 9.954(2) A, b = 15.780(4) A, c = 16.448(3) A, beta = 91.07(1) degrees, Z = 4. Data for crystal II of H3Os6(CO)16B: monoclinic P2(1/n), a = 9.927(2) A, beta = 16.623(2) A, b = 16.0233(10) A, beta = 97.78(1) degrees, Z = 4.
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Affiliation(s)
- J H Chung
- Department of Chemistry, The Ohio State University, Columbus 43210, USA
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The versatile nature of [ClAu(L–L)AuCl] (L–L=bis(diphenylphosphino)methane (dppm) or -butane (dppb)) in reactions with [Rh2Ru4(CO)16B]−: crystal structures of [{Rh2Ru4(CO)16B}2{μ-Au(dppb)Au}] and [RhRu4(CO)14B{Au(dppm)Au}]. Inorganica Chim Acta 1999. [DOI: 10.1016/s0020-1693(99)00065-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Syntheses and structural characterizations of the octahedral boride clusters [Rh2Ru4H(CO)16−2x (nbd) x B] (x=1,2) and gold(I) phosphine derivatives (nbd=norbornadiene). J CLUST SCI 1997. [DOI: 10.1007/bf02764112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Della Pergola R, Cinquantini A, Diana E, Garlaschelli L, Laschi F, Luzzini P, Manassero M, Repossi A, Sansoni M, Stanghellini PL, Zanello P. Iron-Rhodium and Iron-Iridium Mixed-Metal Nitrido-Carbonyl Clusters. Synthesis, Characterization, Redox Properties, and Solid-State Structure of the Octahedral Clusters [Fe(5)RhN(CO)(15)](2)(-), [Fe(5)IrN(CO)(15)](2)(-), and [Fe(4)Rh(2)N(CO)(15)](-). Infrared and Nuclear Magnetic Resonance Spectroscopic Studies on the Interstitial Nitride. Inorg Chem 1997; 36:3761-3771. [PMID: 11670071 DOI: 10.1021/ic961451g] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The cluster [Fe(5)RhN(CO)(15)](2)(-) was synthesized in 40% yield from [Fe(4)N(CO)(12)](-) and [Rh(CO)(4)](-) in refluxing tetrahydrofuran, whereas the analogous anion [Fe(5)IrN(CO)(15)](2)(-) was prepared in CH(3)CN at room temperature from [Fe(6)N(CO)(15)](3)(-) and [Ir(C(8)H(14))(2)Cl](2); the yields are higher than 60%. The monoanion [Fe(4)Rh(2)N(CO)(15)](-) was obtained in 70% yield from [Fe(5)RhN(CO)(15)](2)(-) and hydrated RhCl(3). The solid-state structures of the three anions were determined on their [PPh(4)](+) salts: the six metal atoms are arranged in octahedral cages and are coordinated to 3 edge-bridging and 12 terminal carbonyl ligands and to a &mgr;(6)-N ligand. The Rh and Ir atoms have less terminal COs than Fe, in order to equalize the excess electrons at the d(9) metal centers. The two rhodium atoms in [Fe(4)Rh(2)N(CO)(15)](-) are directly bound. The (15)N NMR spectra of the three compounds have been recorded; the signals of the nitride ligands were found at delta = 514 ppm for the dianions and 470 ppm for [Fe(4)Rh(2)N(CO)(15)](-); any group 9 atom shifts the resonance of nitrogen to higher fields. The coupling constants J((15)N-(103)Rh) are 8-9 Hz. The vibrational patterns of the metal cores have been interpreted on the basis of an idealized M(6) octahedral arrangement, subsequently modified by the perturbations given by different atomic masses and M-M stretching force constants. The motions of the nitrogen are related to the idealized symmetry of the cage; the M-N force constant values depend on the type of metal and on the charge of the anion. The dianions [Fe(5)MN(CO)(15)](2)(-) can be electrochemically oxidized at -20 degrees C to their short-lived monoanions, which can be characterized by EPR spectroscopy. In contrast, the cluster [Fe(4)Rh(2)N(CO)(15)](-) undergoes a single-step 2-electron reduction to the partially stable trianion [Fe(4)Rh(2)N(CO)(15)](3)(-), which was also characterized by EPR spectroscopy. The Fe-Rh nitride clusters are active catalysts for the hydroformylation of 1-pentene, but display low selectivity (35-65%) in n-hexanal and are demolished under catalytic conditions.
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Affiliation(s)
- Roberto Della Pergola
- Dipartimento di Chimica Inorganica, Metallorganica ed Analitica and Centro del CNR, Università di Milano, via G. Venezian 21, 20133 Milano, Italy, Dipartimento di Chimica Strutturale e Stereochimica Inorganica and Centro del CNR, Università di Milano, via G. Venezian 21, 20133 Milano, Italy, Dipartimento di Chimica I.F.M., Università di Torino, via P. Giuria 7, 10125 Torino, Italy, and Dipartimento di Chimica dell' Università, Pian dei Mantellini 44, 53100 Siena, Italy
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Galsworthy JR, Hattersley AD, Housecroft CE, Rheingold AL, Waller A. Heterometallic boride clusters: formation of octahedral [M2Ru4(CO)16B]–(M = Rh or Ir) and gold(I) phosphine derivatives. Crystal structures of [N(PPh3)2][trans-Ir2Ru4(CO)16B], trans-[Rh2Ru4(CO)16B{µ3-AuP(C6H11)3}] and cis-[Ir2Ru4(CO)16B{µ-AuP(C6H11)3}]. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/dt9950000549] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schmid G, Sch�ps E, Malm JO, Bovin JO. Ligand-stabilized Nickel and Palladium Boride Colloids. Z Anorg Allg Chem 1994. [DOI: 10.1002/zaac.19946200707] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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