HMDS may refer to:
* either of two related reagents in
organometallic chemistry:
**
Hexamethyldisilazane (
CH3)3Sisub>2NH)
**
Hexamethyldisilazide
Bis(trimethylsilyl)amine (also known as hexamethyldisilazane and HMDS) is an organosilicon compound with the molecular formula CH3)3Sisub>2NH. The molecule is a derivative of ammonia with trimethylsilyl groups in place of two hydrogen atoms. An e ...
(
CH3)3Sisub>2NM)
*** M = Li as in
Lithium bis(trimethylsilyl)amide
Lithium bis(trimethylsilyl)amide is a lithiated organosilicon compound with the formula . It is commonly abbreviated as LiHMDS or Li(HMDS) (lithium hexamethyldisilazide - a reference to its conjugate acid HMDS) and is primarily used as a strong ...
(LiHMDS)
*** M = Na as in
Sodium bis(trimethylsilyl)amide
Sodium bis(trimethylsilyl)amide is the organosilicon compound with the formula . This species, usually called NaHMDS (sodium hexamethyldisilazide), is a strong base used for deprotonation reactions or base-catalyzed reactions. Its advantages are ...
(NaHMDS)
*** M = K as in
Potassium bis(trimethylsilyl)amide
Potassium bis(trimethylsilyl)amide (commonly abbreviated as KHMDS, Potassium(K) HexaMethylDiSilazide) or potassium hexamethyldisilazane is the chemical compound with the formula ((CH3)3Si)2NK. It is a strong, non-nucleophilic base with an approxim ...
(KHMDS)
*
Hexamethyldisiloxane (O
i(CH3)3sub>2)
*
Her Majesty's Diplomatic Service
His Majesty's Diplomatic Service (HMDS) is the diplomatic service of the United Kingdom of Great Britain and Northern Ireland, dealing with foreign affairs and representing British interests overseas, as opposed to the Home Civil Service, which ...
, of the United Kingdom
*
Helmet mounted display and sight, a system for military pilots
* ''
Harvest Moon DS
''Harvest Moon DS'', known in Japan as , is a farm simulation role-playing video game for the Nintendo DS, part of the ''Story of Seasons'' series. It was published and developed by Marvelous Interactive Inc., and released in Japan on March 17, 2 ...
'', a video game
{{disambiguation