Synthesis, reactions, and [sup 77]Se NMR studies of [eta][sup 5]-selenophene complexes of chromium, manganese, ruthenium, and iridium

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00001a048· OSTI ID:6868309

White, C J; Angelici, R J ^[1]; Choi, M ^[2]

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1. Ames Lab., IA (United States) Iowa State Univ., Ames, IA (United States)
2. Yonsei Univ., Seoul (Korea, Republic of)

The series of [eta][sup 5]-selenophene transition metal complexes ([eta][sup 5]-Seln)Cr(CO)[sub 3] (1-3), [([eta][sup 5]-Seln)Mn(CO)[sub 3]]SO[sub 3]CF[sub 3] (4-6), [([eta][sup 5]-Seln)RuCp*] SO[sub 3]CF[sub 3] (7-9), and [([eta][sup 5]-Seln)IrCp*](BF[sub 4])[sub 2] (10-12), where Seln = selenophene (Sel), 2-methylselenophene (2-MeSel), or 2,5-dimethylselenophene (2,5-Me[sub 2]Sel), were synthesized and characterized by [sup 1]H, [sup 13]C, and [sup 77]Se NMR and IR spectroscopy. The molecular structure of ([eta][sup 5]-2,5-Me[sub 2]Sel)Cr(CO)[sub 3] (3) was determined. Reactions of [([eta][sup 5]-Sel)Mn(CO)[sub 3]]SO[sub 3]CF[sub 3] (4) with nucleophiles (Nuc = H[sup [minus]], CN) give the neutral addition products [(Sel-Nuc)Mn(CO)[sub 3]] [Nuc = H[sup [minus]] (4a), Nuc = CN[sup [minus]] (4b)] in which three carbon atoms and the Se are bonded to the Mn. The reaction of [([eta][sup 5]-Sel)RuCp*]SO[sub 3]CF[sub 3] (7) with H[sup [minus]], however, results in cleavage of the C-Se bond to form a butadiene selenide complex (([eta][sup 5]-SeCH=CHCH=CH[sub 2])RuCp*) (7a). Still another type of product results from the reaction of [([eta][sup 5]-2,5-Me[sub 2]Sel)IrCp*](BF[sub 4])[sub 2] (12) with 2 equiv of H[sup [minus]]; in this case, the H[sup [minus]] acts as a reducing agent to give the ring-opened complex (C, Se-2,5-Me[sub 2]Sel)IrCp* (12a). 45 refs., 4 figs., 4 tabs.

• OSTI ID: 6868309
• Journal Information: Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 14:1; ISSN ORGND7; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHEMICAL REACTIONS
CHEMICAL SHIFT
CHROMIUM COMPLEXES
COMPLEXES
DATA
EXPERIMENTAL DATA
INFORMATION
IRIDIUM COMPLEXES
MAGNETIC RESONANCE
MANGANESE COMPLEXES
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
RESONANCE
RUTHENIUM COMPLEXES
SELENIUM COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES