Trimethyl germanium hydride

Structural formula
General
Surname	Trimethyl germanium hydride
other names	Trimethylgerman
Molecular formula	C 3 H 10 Ge
Brief description	clear liquid
External identifiers / databases
CAS number 1449-63-4 PubChem 207193933 Wikidata Q20054555
properties
Molar mass	118.75 g mol −1
Physical state	liquid
density	1.01 g cm −3
Melting point	−123 ° C
boiling point	26-27 ° C
Vapor pressure	270 mmHg (0 ° C)
solubility	almost insoluble in water
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 224 P: 280-210-233-240-241-242-243-303 + 361 + 353-370 + 378-403 + 235-501
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Trimethylgermanium hydride is a chemical compound from the group of organic germanium compounds .

Extraction and presentation

Trimethylgermaniumhydrid, by reduction of Trimethylgermaniumbromid with lithium aluminum hydride in benzene prepared.

${\displaystyle \mathrm {4\ BrGe(CH_{3})_{3}+\ LiAlH_{4}{\xrightarrow[{C_{6}H_{6}}]{-5\,{}^{\circ }C}}\ 4\ HGe(CH_{3})_{3}\ +\ LiBr\ +\ AlBr_{3}} }$

properties

Physical Properties

The clear, colorless liquid has a mild odor, a flash point of below −20 ° C and a refractive index of 1.389.

Chemical properties

The reaction of trimethylgermanium hydride with tert-butyllithium in THF forms the corresponding lithium salt with elimination of butane:

${\displaystyle \mathrm {\ HGe(CH_{3})_{3}+\ LiC(CH_{3})_{3}\ {\xrightarrow[{THF}]{-10\,{}^{\circ }C}}\ LiGe(CH_{3})_{3}\ +\ C_{4}H_{10}} }$

Individual evidence

1. ↑ ^{a b c d e f g h} TRIMETHYLGERMANE, Safety Data Sheet GET8560. (PDF) GELEST, INC., January 25, 2016, accessed December 27, 2019 .  
2. ↑ ^{a b c} Entry on TRIMETHYLGERMANE at ChemicalBook , accessed on April 19, 2015.
3. ↑ Jane E. Macintyre: Dictionary of Organometallic Compounds . CRC Press, 1994, ISBN 978-0-412-43060-2 , pp. 1713 ( limited preview in Google Book search).
4. ^ JR Durig, MM Chen, YS Li, ​​JB Turner: Spectra and structure of organogermanes. XV. Microwave spectrum of trimethylgerman . In: The Journal of Physical Chemistry . tape 77 , no. January 2 , 1973, ISSN  0022-3654 , pp. 227 , doi : 10.1021 / j100621a016 (English).
5. ↑ Edward Piers, Rene Lemieux: Reaction of (Trimethylgermyl) copper (I) -Dimethyl Sulfide with Acyl Chlorides: Efficient Syntheses of Functionalized Acyltrimethylgermanes . In: Organometallics . tape 14 , no. November 11 , 1995, ISSN  0276-7333 , pp. 5011 , doi : 10.1021 / om00011a016 .