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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:
Molecular Weight:
345.07
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.22

Quality Level

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

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

Skin Corr. 1B

Supplementary Hazards

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

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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)
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)
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)
Highly active magnesium initiators for ring-opening polymerization of rac-lactide.
Wang L and Ma H
Macromolecules, 43(16), 6535-6537 (2010)
Mengyi Wu et al.
Nanoscale, 10(26), 12526-12534 (2018-06-23)
Magnesium secondary batteries are promising candidates for large-scale energy storage systems with high safety, because of the dendrite-free electrodeposition of the magnesium anode. However, the search for available cathode materials remains a significant challenge, hindering their development. In this work

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