Mercury(II) bromide - ACS , CAS No.7789-47-1

CAS: 7789-47-1 Cat. No.: M475241 Molecular Weight: 360.4 EC Number: 232-169-3 PubChem CID: 24612

GRADE & PURITY ACS

Synonyms

bromure mercurique | UNII-P986675T8V | mercury(2+);dibromide | MERCURIC BROMIDE | Mercury dibromide | EINECS 232-169-3 | Mercuric dibromide | DIBROMOMERCURY | HgBr2 | HSDB 829 | Mercury(2)bromide | Mercury(II) bromide | Mercury bromide (HgBr2)

Storage

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Overview

Mercury(II) bromide (HgBr2) affords 1:1 adducts on reaction withN,N,N′,N′- tetramethyl-o-phenylenediamine. Single-crystal X-ray diffraction studies of these adducts have been reported. It forms complexes by reacting with 3,12-dimethylbenzo[a]quinoxalino[2,3-c]phenazine ligand.Mercury(II) bromide (HgBr2) may be used in the preparation of mononuclear [Hg(L1)Br2] and 1D polymer [Hg2(L2)Br4]n[L1 = (N,N-diethyl,N′-(pyridin-2-yl)formylidene)ethane-1,2-diamine and L2 = (N,N-diethyl,N′-(pyridin-2-yl)benzylidene)ethane-1,2-diamine]. It may also be used as a promoter in the glycoslyation reaction of alcohols.

Application：

Mercury(II) bromide is used as a reagent in the Koenigs-Knorr reaction, which forms glycoside linkages on carbohydrates. It is also used to test for the presence of arsenic, as recommended by the Pharmacopoeia.

Specifications

Synonyms

bromure mercurique | UNII-P986675T8V | mercury(2+);dibromide | MERCURIC BROMIDE | Mercury dibromide | EINECS 232-169-3 | Mercuric dibromide | DIBROMOMERCURY | HgBr2 | HSDB 829 | Mercury(2)bromide | Mercury(II) bromide | Mercury bromide (HgBr2)

Specifications & Purity

ACS

Storage

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Grade

ACS

Names and Identifiers

• Pubchem Sid: 488182908
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488182908
• Canonical Smiles: Br[Hg]Br
• IUPAC Name: dibromomercury
• InChIKey: NGYIMTKLQULBOO-UHFFFAOYSA-L
• INCHI: 1S/2BrH.Hg/h2*1H;/q;;+2/p-2
• Isomeric SMILES: Br[Hg]Br
• WGK Germany: 3
• RTECS: OV7415000
• PubChem CID: 24612
• UN Number: 1634
• Packing Group: II
• Molecular Weight: 360.4

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Transition metal salts
      • Subclass Transition metal bromides

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Transition metal salts
• Subclass: Transition metal bromides
• Intermediate Tree Nodes: Not available
• Direct Parent: Transition metal bromides
• Alternative Parents: Inorganic salts Inorganic mercury compounds
• Molecular Framework: Not available
• Substituents: Transition metal bromide - Inorganic salt - Inorganic mercury compound
• Description: This compound belongs to the class of inorganic compounds known as transition metal bromides. These are inorganic compounds in which the largest halogen atom is Bromine, and the heaviest metal atom a transition metal.
• External Descriptors: mercury coordination entity

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in hot alcohol, methanol, HCl, HBr
• Sensitivity: light sensitive
• Boil Point(°C): 322 °C
• Melt Point(°C): 236 °C
• Molecular Weight: 360.400 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 361.805 Da
• Monoisotopic Mass: 359.807 Da
• Topological Polar Surface Area: 0.000 Ų
• Heavy Atom Count: 3
• Formal Charge: 0
• Complexity: 2.800
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1

XLogP3

References

1. Yinxia Du, Wangfei Che, Yunfei Shi, Juanjuan Lu, Xiaodong Zhou, Ting Liu, Shilie Pan, Junjie Li.  (2025)  [HgX2] Linear Group Enabled Ultraviolet Birefringent Crystal RbHg5Br11 with Strong Optical Anisotropy and Wide Bandgap.  Advanced Science,  12  (45): (e14304).  [PMID:40923400] [10.1002/advs.202514304]