@article {4962,
	title = {Bis(carbonyl)platinum(II) derivatives: Molecular structure of cis-Pt(CO)(2)(SO3F)(2), complete vibrational analysis of cis-Pt(CO)(2)Cl-2, and attempted synthesis of cis-Pt(CO)(2)F-2},
	journal = {Inorganic Chemistry},
	volume = {39},
	number = {20},
	year = {2000},
	note = {ISI Document Delivery No.: 361DNTimes Cited: 12Cited Reference Count: 91},
	month = {Oct},
	pages = {4424-4432},
	type = {Article},
	abstract = {{As part of a comprehensive study of square planar palladium(II) and platinum(II) carbonyl derivatives, the molecular structure of cis-Pt(CO)(2)(SO3F)(2), the complete vibrational spectra of cis-Pt(CO)(2)Cl-2 and the attempted synthesis of cis-Pt(CO)(2)F-2 an reported. cis-Pt(CO)(2)(SO3F)(2) is isostructural with cis-Pd(CO) (2)(SO3F)(2) and crystallizes in the monoclinic space group P2(1)/n (no. 14). Crystal data: a = 7.419(1) Angstrom; b = 14.751(2) Angstrom; c 8.634(1) Angstrom; beta = 89.95(1)degrees; V = 934.9(2) Angstrom(3); Z = 4; T = 300 K; R [F-o > 4 sigma(F-o)] = 0.0447 and wR2 = 0.1097. The internal bond parameters of the cis-Pt(CO)(2)(SO3F)(2) are compared to those of cis-Pd(CO)(2)(SO3F)(2), cis-Pt(CO)(2)Cl-2, and [M(CO)(4)](2+)},
	keywords = {CARBONYL-COMPLEXES, CRYSTAL-STRUCTURE, FLUOROSULFATE, HALIDE LIGANDS, INORGANIC, LATE TRANSITION-ELEMENTS, NOBLE-METALS, OLIGOMERS, platinum, SPECTRA, UNDECAFLUORODIANTIMONATE(V)},
	isbn = {0020-1669},
	url = {<Go to ISI>://000089707500008},
	author = {von Ahsen, B. and Wartchow, R. and Willner, H. and Jonas, V. and Aubke, F.}
}
@article {2956,
	title = {CARBON-MONOXIDE AS A SIGMA-DONOR LIGAND IN COORDINATION CHEMISTRY},
	journal = {Coordination Chemistry Reviews},
	volume = {137},
	year = {1994},
	note = {ISI Document Delivery No.: PW818Times Cited: 84Cited Reference Count: 189},
	month = {Dec},
	pages = {483-524},
	type = {Review},
	abstract = {In addition to the numerous and varied examples of organometallic and coordination compounds where carbon monoxide functions as a pi-acceptor ligand, there is a small but select group of derivatives where the CO-metal bonding relies predominantly on a-bonding only. The metal derivatives, which include Pt(CO)(2)Cl-2 known since 1868, are formed by electron-rich metals (Pd, Pt, Ag and Au), in oxidation states +1 and +2, are cationic in nature, and are for the most part thermally stable. Their generation in strong protonic and Lewis acids (HSO3F, HSO3F-SbF5 and liquid SbF5) allows convenient synthesis. The predominance of sigma-bonding results in unusual spectroscopic properties, such as <(nu)over bar>CO stretching vibrations as high as 2280 cm(-1), relative to 2143 cm(-1) in free CO, and C-13 chemical shifts which are 180-130 ppm rather than 190-220 ppm for classical transition-metal carbonyls. Consequently two basic principles, the synergic bonding model and the rule of 18, fail for these complexes. Recent structural studies point to the importance of secondary OC...OS or OC...FSb contacts, which in place of pi-backdonation provide for a measure of charge compensation both in solution or in the solid state. This review concentrates on very recent (since 1990) developments in this field, which is expanding rapidly beyond the transition metals.},
	keywords = {FLUOROSULFATE DERIVATIVES, GOLD(III) FLUOROSULFATE, HIGHLY REDUCED ORGANOMETALLICS, LATE TRANSITION-ELEMENTS, MAGNETIC-PROPERTIES, MICROWAVE-SPECTRUM, MOLECULAR-STRUCTURE, NOBLE-METALS, THIONYL CHLORIDE, VIBRATIONAL-SPECTRA},
	isbn = {0010-8545},
	url = {<Go to ISI>://A1994PW81800013},
	author = {Aubke, F. and Wang, C.}
}
@article {3064,
	title = {THE SYNTHESES AND VIBRATIONAL-SPECTRA OF BIS(CARBONYL)PLATINUM(II) FLUOROSULFATE, PT(CO)2(SO3F)2, AND BIS(CARBONYL)PALLADIUM(II) FLUOROSULFATE, PD(CO)2(SO3F)2},
	journal = {Journal of Fluorine Chemistry},
	volume = {66},
	number = {2},
	year = {1994},
	note = {ISI Document Delivery No.: MX367Times Cited: 26Cited Reference Count: 43},
	month = {Feb},
	pages = {159-166},
	type = {Article},
	abstract = {Reductive carbonylation of platinum(IV) tetrakis(fluorosulfate), Pt(SO3F)4, in fluorosulfuric acid at 80-degrees-C with a CO pressure of 1-2 atm resulted in the quantitative formation of creamy white bis(carbonyl)platinum(II) fluorosulfate, Pt(CO)2(SO3F)2. The corresponding bis(carbonyl)palladium(II) fluorosulfate, Pd(CO)2(SO3F)2, has been formed from solid Pd(II)Pd(IV)(SO3F)6 at room temperature and a CO pressure of 0.5 atm as a yellow solid that was thermally stable up to 117-degrees-C. Both compounds gave nearly identical IR and Raman spectra, which suggests a cis-square-planar configuration. The average CO stretching frequencies were at 2217 and 2201 cm-1 for Pd(CO)2(SO3F)2 and Pt(CO)2(SO3F)2, respectively. They are unusually high and suggest substantially reduced pi-back-donation. Pd(CO)2(SO3F)2 is the first example of a thermally stable mononuclear bis(carbonyl) derivative of dipositive palladium.},
	keywords = {CARBONYL-COMPLEXES, DERIVATIVES, GOLD(III) FLUOROSULFATE, ION, LATE TRANSITION-ELEMENTS, PALLADIUM(II)},
	isbn = {0022-1139},
	url = {<Go to ISI>://A1994MX36700013},
	author = {Hwang, G. and Wang, C. and Bodenbinder, M. and Willner, H. and Aubke, F.}
}
