Dixremia hexaiodide

Dixremia hexaiodide
Dixremia hexaiodide
Are common
Systematic ; name	Dixremia hexaiodide
Traditional names	Hexaiododisilane
Chem. formula	Si 2 I 6
Physical properties
condition	pale yellow crystals
Molar mass	817.60 g / mol
Thermal properties
T. melt.	250 ° C
T. decomp.	250 ° C
Classification
Reg. CAS number	13510-43-5

Dicremium hexaiodide is an inorganic compound, a disilane iodo derivative with the formula Si ₂ I ₆ , pale yellow crystals, is hydrolyzed by water.

Content

Getting

Heating of silicon tetraiodide with silver powder in vacuum:

{\mathsf {2SiI_{4}+2Ag\ {\xrightarrow {280^{o}C}}\ Si_{2}I_{6}+2AgI}}

{\ displaystyle {\ mathsf {2SiI_ {4} + 2Ag \ {\ xrightarrow {280 ^ {o} C}} \ Si_ {2} I_ {6} + 2AgI}}}

the resulting halide mixture was separated by sublimation in vacuo .

Pyrolysis of polymer silicon diiodide in vacuum at 350 ° C. The resulting halide mixture was separated by sublimation in vacuo .

Physical Properties

Diceremia hexaiodide forms pale yellow needle crystals, is easily hydrolyzed by water.

Chemical Properties

It decomposes on heating in a stream of nitrogen :

{\mathsf {nSi_{2}I_{6}\ {\xrightarrow {350-400^{o}C}}\ 2(SiI_{2})_{n}+nI_{2}}}

{\ displaystyle {\ mathsf {nSi_ {2} I_ {6} \ {\ xrightarrow {350-400 ^ {o} C}} \ 2 (SiI_ {2}) _ {n} + nI_ {2}}}}

Literature

Chemical Encyclopedia / Editorial Board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1990. - T. 2. - 671 p. - ISBN 5-82270-035-5 .
Inorganic Synthesis Guide: 6 Vol. / Ed. Brower, G. - M .: Mir, 1985 .-- T. 3 .-- 392 p.
CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.
Adrianov K.A. Organosilicon compounds. - M .: State Scientific and Technical Publishing House of Chemical Literature, 1955. - 521 p.
Jolly W. Syntheses of inorganic compounds. - M .: Mir, 1966. - T. 1. - 280 p.