@article {762,
	title = {Cationic carbonyl complexes of rhodium(I) and rhodium(III): Syntheses, vibrational spectra, NMR studies, and molecular structures of tetrakis(carbonyl)rhodium(I) heptachlorodialuminate and -gallate, [Rh(CO)(4)][Al2Cl7] and [Rh(CO)(4)][Ga2Cl7]},
	journal = {Inorganic Chemistry},
	volume = {42},
	number = {12},
	year = {2003},
	note = {ISI Document Delivery No.: 688AXTimes Cited: 6Cited Reference Count: 73},
	month = {Jun},
	pages = {3801-3814},
	type = {Article},
	abstract = {{Dimeric rhodium(I) bis(carbonyl) chloride, [Rh(CO)(2)(mu-Cl)](2), is found to be a useful and convenient starting material for the syntheses of new cationic carbonyl complexes of both rhodium(l) and rhodium(III). Its reaction with the Lewis acids AlCl3 or GaCl3 produces in a CO atmosphere at room temperature the salts [Rh(CO)(4)][M2CI7] (M = Al, Ga), which are characterized by Raman spectroscopy and single-crystal X-ray diffraction. Crystal data for [Rh(CO)(4)][Al2Cl7]: triclinic, space group P1 (No. 2); a = 9.705(3)},
	keywords = {ACIDS, ANIONS, CO, CRYSTAL, EXCHANGE, IR, metals, MONOXIDE, RH, UNDECAFLUORODIANTIMONATE(V)},
	isbn = {0020-1669},
	url = {<Go to ISI>://000183410900016},
	author = {von Ahsen, B. and Bach, C. and Berkei, M. and Kockerling, M. and Willner, H. and Hagele, G. and Aubke, F.}
}
@article {771,
	title = {Predominantly sigma-bonded metal carbonyl cations (sigma-carbonyls): New synthetic, structural, and bonding concepts in metal carbonyl chemistry},
	journal = {Chemistry-a European Journal},
	volume = {9},
	number = {8},
	year = {2003},
	note = {ISI Document Delivery No.: 669ZKTimes Cited: 7Cited Reference Count: 60},
	month = {Apr},
	pages = {1668-1676},
	type = {Article},
	abstract = {Predominantly sigma-bonded metal carbonyl cations (sigma-carbonyls) are conveniently generated in the Lewis superacid SbF5 or the conjugate Bronsted-Lewis superacid HF-SbF5, primarily by solvolytic or reductive carbonylations. Thermally stable salts are formed with the fluoroantimonate(v) ions [SbF6](-) and [Sb2F11](-). The salts are characterised by analytical, structural, spectroscopic and computational methods. Most homoleptic carbonyl cations have very regular geometries, comensurate with their d-electron configurations: linear (d(10)), square planar (d(8)) or octahedral(d(6)). The cations with metals in oxidation states of +2 or +3 are termed "superelectrophilic". Extended molecular structures form by significant interionic C-F contacts with electrophilic carbon as acceptor. To account for all experimental observations, a conceptually simple synergetic bonding model is proposed. An outlook at anticipated future developments based on very recent results is provided.},
	keywords = {<PT(CO)(4)><SB2F11>(2), carbonyl ligands, CATIONS, COMPLEXES, CRYSTAL, fluoro antimonates, FLUOROSULFATE, MOLECULAR-STRUCTURE, MONOXIDE, solid-state structures, superacidic systems, UNDECAFLUORODIANTIMONATE(V), VIBRATIONAL-SPECTRA, WEAKLY COORDINATING ANIONS, X-RAY-DIFFRACTION},
	isbn = {0947-6539},
	url = {<Go to ISI>://000182381600002},
	author = {Willner, H. and Aubke, F.}
}
@article {4473,
	title = {Hexakis(carbonyl)iron(II) undecafluorodiantimonate(V), [Fe(CO)(6)][Sb2F11](2), and -hexafluoroantimonate(V), [Fe(CO)(6)][SbF6](2), their syntheses, and spectroscopic and structural characterization by single crystal X-ray diffraction and normal coordinate},
	journal = {Journal of the American Chemical Society},
	volume = {121},
	number = {31},
	year = {1999},
	note = {ISI Document Delivery No.: 227UKTimes Cited: 32Cited Reference Count: 109},
	month = {Aug},
	pages = {7188-7200},
	type = {Review},
	abstract = {Hexakis/carbonyl iron(LI) undecafluorodiantimonate(V), [Fe(CO)(6)][Sb2F11](2) is conveniently prepared by the oxidative carbonylation of Fe(CO)(5) with XeF2 as external oxidizer in the conjugate Br phi nsted-Lewis superacid HF-SbF5. The colorless compound crystallizes from the reaction medium in high purity. The molecular structure is obtained by single-crystal X-ray diffraction. The cation is a regular octahedron, while the vertex-shared di-octahedral [Sb2F11](-) anion is distorted from D-4h symmetry by bending and rotational processes, due to significant interionic interactions, primarily of the FC type. Washing of [Fe(CO)(6)][Sb2F11](2) with anhydrous HF results in an unusual elution of SbF5 and the quantitative conversion to hexakis(carbonyl)iron(II) hexafluoroantimonate;(V) [Fe(CO)(6)][SbF6](2) The molecular structure of the salt shows octahedral ions with slight tetragonal distortions for the cation (elongation) and the anion (comprsssion). Both salts are thermally stable up to 150 degrees C, The averaged bond distances and the vibrational wavenumbers of [Fe(CO)(6)](2+) are nearly identical in both compounds. The [Fe(CO)(6)](2+) cation, the first and so far only isolated and structurally characterized dipositive, superelectrophilic carbonyl cation formed by a 3d-metal, is further characterized by a normal coordinate analysis (NCA). The obtained force constants are compared to those of the isoelectronic molecule Cr(CO)6. Changes in pi-back-bonding affect the F-CO/CO and F-CO/MC interaction force constants more strongly than the stretching force constants F-CO and F-MC All 13 fundamentals of [Fe(CO)(6)](2+) are detected and assigned with the help of the data obtained from the normal coordinate analysis and density functional calculations published previously. The electronic ground state (1)A(1g), of the [Fe(CO)(6)](2+) cation is established by magnetic susceptibility measurements of polycrystalline [Fe(CO)(6)][SbF6](2) and [Fe(CO)(6)][Sb2F11](2) between and 300 K. The magnetic impurity formed during synthesis is identified as Fe[SbF6](2) which has iron(II) in high spin (T-5(2g)) ground state. Consistent with a diamagnetic ground state are the single line in the Fe-57 Mossbauer spectrum (i.s. = -0.003(8) mm s(-1) relative to alpha-Fe), obtained on polycrystalline samples and the single sharp line in the C-13 NMR spectrum in DF solution at 178 ppm with J (Fe-57-C-13) of 19.2 Hz.},
	keywords = {C-13, COMPLEXES, CONSTANTS, IRON PENTACARBONYL, MAS-NMR-SPECTRA, METAL-CARBONYL CATIONS, MO, MOLECULAR-STRUCTURE, MONOXIDE, VIBRATIONAL-SPECTRA},
	isbn = {0002-7863},
	url = {<Go to ISI>://000082098200003},
	author = {Bernhardt, E. and Bley, B. and Wartchow, R. and Willner, H. and Bill, E. and Kuhn, P. and Sham, I. H. T. and Bodenbinder, M. and Brochler, R. and Aubke, F.}
}
@article {3891,
	title = {(2)Pi-(X)over-tilde(2)Sigma(+) electronic bands of titanium methylidyne, TiCH, near 725 nm wavelength},
	journal = {Journal of Molecular Spectroscopy},
	volume = {181},
	number = {1},
	year = {1997},
	note = {ISI Document Delivery No.: WA945Times Cited: 24Cited Reference Count: 27},
	month = {Jan},
	pages = {168-179},
	type = {Article},
	abstract = {Electronic bands assigned to the linear TiCH and TiCD radicals have been recorded by laser-induced fluorescence in the 610-725 nm wavelength region, following the reaction of laser-ablated Ti atoms with methane under supersonic jet-cooled molecular beam conditions. Rotational analyses of high-resolution spectra have given the ground state substitution structure X(2) Sigma(+): r(g)(C-H) = 1.085 +/- 0.002 Angstrom: r(g)(Ti-C) = 1.7277 +/- 0.0003 Angstrom. The electronic upper state appears to be a very strongly perturbed (2) Pi start, with many extra rotational and vibrational levels appearing; it has nor barn possible to make vibrational assignments, though the Omega{\textquoteright} values have been established for some of the levels. Wavelength-resolved fluorescence spectra have given two of the three ground state vibrational frequencies: TiCH: nu(2)(bend) = 578 cm(-1), nu(3)(Ti-C stretch) = 855 cm(-1) TiCD: nu(2) = 442 cm(-1), nu(3) = 815 cm(-1) Vibrationally forbidden transitions to the ground state bending fundamental appear prominently in many of these spectra, as a result of strong vibronic coupling. No evidence for nu(1)(pi) (the C-Il stretching vibration) has been found. (C) 1997 Academic Press, Inc.},
	keywords = {EXCITATION SPECTRUM, FLUORESCENCE, FREQUENCY, MONOXIDE, PERTURBATIONS, RESONANCE, SPECTROSCOPY, STATES, SYSTEM},
	isbn = {0022-2852},
	url = {<Go to ISI>://A1997WA94500020},
	author = {Barnes, M. and Merer, A. J. and Metha, G. F.}
}
@article {3597,
	title = {Cationic iridium(III) carbonyl complexes: [Ir(CO)(6)](3+) and [Ir(CO)(5)Cl](2+)},
	journal = {Angewandte Chemie-International Edition in English},
	volume = {35},
	number = {17},
	year = {1996},
	note = {ISI Document Delivery No.: VM029Times Cited: 55Cited Reference Count: 27},
	month = {Sep},
	pages = {1974-1976},
	type = {Article},
	keywords = {carbonyl complexes, ELUCIDATION, FLUOROSULFATE, IR spectroscopy, iridium compounds, MOLECULAR-STRUCTURE, MONOXIDE, SPECTRA, STRUCTURE, UNDECAFLUORODIANTIMONATE(V)},
	isbn = {0570-0833},
	url = {<Go to ISI>://A1996VM02900023},
	author = {Bach, C. and Willner, H. and Wang, C. Q. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {3597,
	title = {Cationic iridium(III) carbonyl complexes: [Ir(CO)(6)](3+) and [Ir(CO)(5)Cl](2+)},
	journal = {Angewandte Chemie-International Edition in English},
	volume = {35},
	number = {17},
	year = {1996},
	note = {ISI Document Delivery No.: VM029Times Cited: 55Cited Reference Count: 27},
	month = {Sep},
	pages = {1974-1976},
	type = {Article},
	keywords = {carbonyl complexes, ELUCIDATION, FLUOROSULFATE, IR spectroscopy, iridium compounds, MOLECULAR-STRUCTURE, MONOXIDE, SPECTRA, STRUCTURE, UNDECAFLUORODIANTIMONATE(V)},
	isbn = {0570-0833},
	url = {<Go to ISI>://A1996VM02900023},
	author = {Bach, C. and Willner, H. and Wang, C. Q. and Rettig, S. J. and Trotter, J. and Aubke, F.}
}
@article {3844,
	title = {Homoleptic carbonyl cations of palladium(I), palladium(II), platinum(II), and gold(I) - Simplified synthetic routes to their fluoroantimonate(V) salts},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {74},
	number = {11},
	year = {1996},
	note = {ISI Document Delivery No.: WC124Times Cited: 8Cited Reference Count: 68},
	month = {Nov},
	pages = {1952-1958},
	type = {Article},
	abstract = {{The original synthetic routes to the new noble metal carbonyl cations [Au(CO)(2)](+) and [M(CO)(4)](2+)},
	keywords = {ACIDS, and Pt(II), carbonylations in strong acidic media, COMPLEXES, DERIVATIVES, FLUOROSULFATES, MAS NMR-SPECTRA, metal carbonyl cations of Au(I), MONOXIDE, NOBLE-METALS, Pd(I), Pd(II), reactions in liquid SbF5, reductive carbonylation in liquid SbF5, solvolysis, UNDECAFLUORODIANTIMONATE(V), VIBRATIONAL-SPECTRA},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1996WC12400009},
	author = {Wang, C. Q. and Siu, S. C. and Hwang, G. and Bach, C. and Bley, B. and Bodenbinder, M. and Willner, H. and Aubke, F.}
}
@article {2832,
	title = {THE SYNTHESES AND VIBRATIONAL-SPECTRA OF TETRAKIS(CARBONYL) PALLADIUM(II) AND PLATINUM(II) UNDECAFLUORODIANTIMONATE(V), [PD(CO)4][SB2F11]2, AND [PT(CO)4][SB2F11]2},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {71},
	number = {9},
	year = {1993},
	note = {ISI Document Delivery No.: MC957Times Cited: 54Cited Reference Count: 49},
	month = {Sep},
	pages = {1532-1536},
	type = {Note},
	abstract = {{The reductive carbonylation of either platinum(IV) fluorosulfate, Pt(SO3F)4, or palladium(III) fluorosulfate, Pd(SO3F)3, either in solution of fluorosulfuric acid, HSO3F, or in the solid state with CO at pressures of 0.5 to 2 atmospheres and at 25-degrees-C, affords in high yield complexes of the type M(CO)2(SO3F)2},
	keywords = {ACIDS, CHEMISTRY, COMPLEXES, CONSTANTS, METAL-CARBONYL CATIONS, MOLECULAR-STRUCTURE, MONOXIDE},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1993MC95700029},
	author = {Hwang, G. and Wang, C. and Aubke, F. and Willner, H. and Bodenbinder, M.}
}
@article {7235,
	title = {MONONUCLEAR AND DINUCLEAR RHODIUM CARBONYL SPECIES CONTAINING MONODENTATE OR BRIDGING 1,3-BIS(DIPHENYLPHOSPHINO)PROPANE},
	journal = {Gazzetta Chimica Italiana},
	volume = {122},
	number = {8},
	year = {1992},
	note = {ISI Document Delivery No.: JW695Times Cited: 2Cited Reference Count: 50},
	month = {Aug},
	pages = {329-334},
	type = {Article},
	abstract = {The interaction of [Rh(CO)(dpp)]2(mu-CO)2 with H-2 in CH2Cl2 in the presence of varying amounts of dpp leads mainly to catalytically important species which include Rh(H)(CO)(dpp)(dpp*) and [RhH(CO)(dpp)]2(mu-dpp), these being formed also by treating RhH(dpp)2 with about 2 equivalents of CO; dpp and dpp* = bidentate and monodentate 1,3-bis(diphenylphosphino)propane, respectively. Mechanistic pathways involving a detected RhH(CO)2(dpp) and non-detected <<RhH(CO)(dpp)>> species are suggested.},
	keywords = {ASYMMETRIC HYDROGENATION, CATALYSIS, CATALYTIC-HYDROGENATION, COMPLEXES, DIHYDROGEN, homogeneous, HYDROACYLATION, HYDROFORMYLATION, INSERTION, MONOXIDE, REACTIVITY},
	isbn = {0016-5603},
	url = {<Go to ISI>://A1992JW69500009},
	author = {Fung, D. C. M. and James, Brian R.}
}
