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692352

Sigma-Aldrich

Magnesium bis(hexamethyldisilazide)

97%

Synonym(s):

Bis(hexamethyldisilazido)magnesium, Mg(HMDS)2

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About This Item

Empirical Formula (Hill Notation):
C12H36MgN2Si4
CAS Number:
857367-60-3
Molecular Weight:
345.07
MDL number:
MFCD11656057
UNSPSC Code:
12352103
PubChem Substance ID:
329761487
NACRES:
NA.22

Assay

97%

form

solid

mp

121-124 °C

SMILES string

C[Si](C)(C)N([Mg]N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C

InChI

1S/2C6H18NSi2.Mg/c2*1-8(2,3)7-9(4,5)6;/h2*1-6H3;/q2*-1;+2

InChI key

WYPTZCBYSQFOQS-UHFFFAOYSA-N

Related Categories

Application

Magnesium bis(hexamethyldisilazide) is an essential precursor in the synthesis of wide range of diketiminate ligand complexes for rac-lactide polymerization. It can also be used in the synthesis of ItBu:Mg[N(SiMe3)2]2, where ItBu = (1,3-di-tert-butylimidazol-2-ylidene), a catalyst for the guanylation reaction of addition of amine to carbodiimide.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Supplementary Hazards

EUH014

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Stereoselectivity switch between zinc and magnesium initiators in the polymerization of rac-lactide: different coordination chemistry, different stereocontrol mechanisms.
Wang H, et al.
Macromolecules, 47(22), 7750-7764 (2014)
Highly active magnesium initiators for ring-opening polymerization of rac-lactide.
Wang L and Ma H
Macromolecules, 43(16), 6535-6537 (2010)
Catalytic C?N bond formation in guanylation reaction by N-heterocyclic carbene supported magnesium (II) and zinc (II) amide complexes.
Baishya A, et al.
Journal of Organometallic Chemistry, 769, 112-118 (2014)
Dong Chen et al.
Nanoscale, 11(48), 23173-23181 (2019-11-30)
CoSe2 materials with different nanostructures are used as pseudocapacitive Mg-storage cathodes, which exhibit fast solid-state Mg2+ ions diffusion kinetics. In this work, CoSe2 with different nanostructures including hollow microspheres (H-CoSe2), nano-polyhedra (P-CoSe2) and nanorods (R-CoSe2) are fabricated by using facile
Lactide polymerization catalyzed by Mg and Zn diketiminate complexes with flexible ligand frameworks.
Whitehorne T J, et al.
Dalton Transactions, 43(17), 6339-6352 (2014)
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