Reactions of boron hydrides with the iminium salt (Me/sub 2/NCH/sub 2/)I. Synthesis and characterization of 1-X-. mu. -(Me/sub 2/NCH/sub 2/)B/sub 5/H/sub 7/ (X = H, C/sub 2/H/sub 5/, Br), a new class of bridge-substituted pentaborane derivatives

Journal Article · Wed Jan 29 00:00:00 EST 1986 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00223a028· OSTI ID:5974586

Gaines, D F; Coons, D E

Reactions of (Me/sub 2/NCH/sub 2/)I (1) with salts of the B/sub 5/H/sub 8//sup -/, 1-(C/sub 2/H/sub 5/)B/sub 5/H/sub 7//sup -/, and 1-BrB/sub 5/H/sub 7//sup -/ anions produce the ..mu..-((dimethylamino)-methyl)pentaborane derivatives ..mu..-(Me/sub 2/NCH/sub 2/)B/sub 5/H/sub 8/, 1-(C/sub 2/H/sub 5/)-..mu..-(Me/sub 2/NCH/sub 2/B/sub 5/H/sub 7/, and 1-Br-..mu..-(Me/sub 2/NCH/sub 2/)B/sub 5/H/sub 7/, respectively, in good yields. A structure for these compounds is proposed in which a bridging hydrogen atom of B/sub 5/H/sub 9/ has been replaced by a C-N two-atom bridge, the Me/sub 2/NCH/sub 2/ group. These clusters are analogues of the arachno-B/sub 5/H/sub 10//sup -/ anion, and there is no evidence of direct bonding between the Me/sub 2/NCH/sub 2/-bridged boron atoms. Reaction of 1 with NaBH/sub 4/ forms Me/sub 3/N.BH/sub 3/, while reaction with (Me/sub 4/N)(B/sub 3/H/sub 8/) produces a variety of products including Me/sub 3/N.BH/sub 3/, Me/sub 3/N.B/sub 3/H/sub 7/, B/sub 2/H/sub 6/, and B/sub 5/H/sub 9/. Attack of 1 on B/sub 5/H/sub 9/ occurs slowly at 65 /sup 0/C, forming Me/sub 3/N.BH/sub 3/ and Me/sub 3/N.B/sub 3/H/sub 7/. 16 references, 2 figures, 1 table.

• Research Organization: Univ. of Wisconsin, Madison
• OSTI ID: 5974586
• Journal Information: Inorg. Chem.; (United States), Vol. 25:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
BORANES
CHEMICAL PREPARATION
DERIVATIZATION
BORON HYDRIDES
CHEMICAL REACTIONS
BROMINE COMPOUNDS
IMINES
ANIONS
CHEMICAL BONDS
EXPERIMENTAL DATA
HYDROGEN
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
SALTS
BORON COMPOUNDS
CHARGED PARTICLES
DATA
ELEMENTS
HALOGEN COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
IONS
MAGNETIC RESONANCE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
RESONANCE
SPECTRA
SYNTHESIS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies