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Isocyanide insertion reactions. The reaction of Mn(CO)/sub 4/CNCH/sub 3/ anion with iodomethane and the crystal and molecular structure of (CH/sub 3/)N == C(CH/sub 3/)(CH/sub 3/)C == N(CH/sub 3/)Mn(CO)/sub 3/Mn(CO)/sub 3/

Journal Article · · J. Am. Chem. Soc.; (United States)
DOI:https://doi.org/10.1021/ja00545a013· OSTI ID:6797734

The cyclic compounds (CH/sub 3/)N == C(CH/sub 3/)(CH/sub 3/)C == N(CH/sub 3/)Mn(CO)/sub 3/(I) was obtained from the reaction of Mn(CO)/sub 4/(CNCH/sub 3/)/sup -/ with CH/sub 3/I. The product was analyzed crystallographically. Crystal data: space group P1-bar, a = 7.352 (2) A, b = 8.863 (2) A, c = 12.324 (6) A, ..cap alpha.. = 83.44 (4)/sup 0/, ..beta.. = 85.66 (3)/sup 0/, ..gamma.. = 72.45 (2)/sup 0/, Z = 2, V = 760.0 (6) A/sup 3/, rho/sub calcd/ = 1.70 g/cm/sup 3/. The molecule contains a five-membered metallacyclic ring consisting of one manganese atom and a tetramethyl-..cap alpha..-diimine ligand. The latter is bonded to the manganese atom via the nitrogen atoms. The five-membered ring is bonded via the two imine ..pi.. bonds and the manganese atom to a manganese tricarbonyl group. The Mn-Mn bonding distance is 2.615 (1) A. The molecule is formally isoelectronic and isostructural to the cyclic RC == C(R)(R)C == C(R)Fe(CO)/sub 3/Fe(CO)/sub 3/ molecules which have been widely discussed in the development of the theories of semibridging carbonyl ligands. The relaionship of I to these molecules is discussed.

Research Organization:
Yale Univ., New Haven, CT
DOE Contract Number:
AC02-78ER04900
OSTI ID:
6797734
Journal Information:
J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 102:25; ISSN JACSA
Country of Publication:
United States
Language:
English

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Related Subjects

090110 -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
CARBONYLS
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
CYANIDES
DATA
EXPERIMENTAL DATA
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
IODINATED ALIPHATIC HYDROCARBONS
MANGANESE COMPOUNDS
METHANE
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANOMETALLIC COMPOUNDS
TABLES
TRANSITION ELEMENT COMPOUNDS