Dimethylcadmium

Structural formula
General
Surname	Dimethylcadmium
Molecular formula	C 2 H 6 Cd
External identifiers / databases
ECHA InfoCard	100.007.324
PubChem	10479
ChemSpider	10254476
Wikidata	Q27237219
properties
Molar mass	124.48 g mol −1
density	1.98 g cm −3
Melting point	−4.5 ° C
boiling point	105.5 ° C
solubility	soluble in petroleum ether
Refractive index	1,549
safety instructions
H and P phrases	H: 225-250-261-302 + 312 + 332-314-410
	P: ?
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Dimethylcadmium is a volatile organocadmium compound that is liquid and colorless. The linear molecule has Cd – C bond lengths of 213 pm each. It is a weak Lewis acid that forms an adduct with bipyridine and ether .

Extraction and presentation

Dimethylcadmium is obtained by reacting cadmium chloride and methylmagnesium bromide :

{\ displaystyle {\ ce {CdBr2 + 2 CH3MgBr -> Cd (CH3) 2 + MgBr2}}}

use

The compound has limited use as a reagent in organic synthesis and MOCVD . It was also used in the synthesis of cadmium selenide nanoparticles . This use was discontinued due to its toxicity.

Individual evidence

↑ ^a ^b ^c ^d ^e David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 89th edition. (Internet version: 2009), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-196.
↑ Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of dimethylcadmium in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on May 11, 2018, is reproduced from a self-classification by the distributor .
↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry cadmium compounds, with the exception of cadmium selenosulphide (xCdS.yCdSe) and reaction mass of cadmium sulphide and zinc sulphide (xCdS.yZnS) , Reaction mass of cadmium sulfide and mercury sulfide (xCdS yHgS) as well as the cadmium compounds, which are listed separately in this appendix in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 23, 2019. Manufacturers or distributors can use the harmonized classification and expand labeling .
↑ Felix Hanke, Sarah Hindley, Anthony C. Jones, Alexander Steiner: The solid state structures of the high and low temperature phases of dimethylcadmium . In: Chemical Communications . tape 52 , no. 66 , 2016, p. 10144-10146 , doi : 10.1039 / c6cc05851e .
^ ^A ^b Douglas F. Foster, David J. Cole-Hamilton, Richard A. Jones: Electronic Grade Alkyls of Group 12 and 13 Elements . In: Inorganic Syntheses . John Wiley & Sons, Inc., Hoboken, NJ, USA 2007, ISBN 978-0-470-13262-3 , pp. 29-66 , doi : 10.1002 / 9780470132623.ch7 .
↑ Julia Hambrock, Alexander Birkner, Roland A. Fischer: Synthesis of CdSe nanoparticles using various organometallic cadmium precursors . In: Journal of Materials Chemistry . tape 11 , no. 12 , November 2, 2001, pp. 3197-3201 , doi : 10.1039 / b104231a .

[CRC89-1] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 89th edition. (Internet version: 2009), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-196.

[2] Template: CL Inventory / not harmonized There is not yet a harmonized classification for this substance . A labeling of dimethylcadmium in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), retrieved on May 11, 2018, is reproduced from a self-classification by the distributor .

[CLP_100.240.773-3] Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry cadmium compounds, with the exception of cadmium selenosulphide (xCdS.yCdSe) and reaction mass of cadmium sulphide and zinc sulphide (xCdS.yZnS) , Reaction mass of cadmium sulfide and mercury sulfide (xCdS yHgS) as well as the cadmium compounds, which are listed separately in this appendix in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 23, 2019. Manufacturers or distributors can use the harmonized classification and expand labeling .

[4] Felix Hanke, Sarah Hindley, Anthony C. Jones, Alexander Steiner: The solid state structures of the high and low temperature phases of dimethylcadmium . In: Chemical Communications . tape 52 , no. 66 , 2016, p. 10144-10146 , doi : 10.1039 / c6cc05851e .

[Foster-5] A ^b Douglas F. Foster, David J. Cole-Hamilton, Richard A. Jones: Electronic Grade Alkyls of Group 12 and 13 Elements . In: Inorganic Syntheses . John Wiley & Sons, Inc., Hoboken, NJ, USA 2007, ISBN 978-0-470-13262-3 , pp. 29-66 , doi : 10.1002 / 9780470132623.ch7 .

[6] Julia Hambrock, Alexander Birkner, Roland A. Fischer: Synthesis of CdSe nanoparticles using various organometallic cadmium precursors . In: Journal of Materials Chemistry . tape 11 , no. 12 , November 2, 2001, pp. 3197-3201 , doi : 10.1039 / b104231a .