13759-87-0

Basic information

• Product Name: SAMARIUM BROMIDE
• Synonyms: SAMARIUM(III) BROMIDE;SAMARIUM BROMIDE;samariumbromide(smbr3);samarium tribromide;SAMARIUM(III) BROMIDE ANHYDROUS BEADS&;Samarium bromide hexahydrate, 99.99%;SAMARIUM BROMIDE, 99.9%;SAMARIUM(III) BROMIDE HEXAHYDRATE: 99.99%
• CAS NO: 13759-87-0
• Molecular Formula: Br₃Sm
• Molecular Weight: 390.07
• EINECS: 237-347-4
• Product Categories: Samarium Salts;SamariumMetal and Ceramic Science;Catalysis and Inorganic Chemistry;Chemical Synthesis;Crystal Grade Inorganics;Salts
• Mol File: 13759-87-0.mol

Chemical Properties

• Melting Point: 700 °C(lit.)
• Appearance: /powder
• CAS DataBase Reference: SAMARIUM BROMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: SAMARIUM BROMIDE(13759-87-0)
• EPA Substance Registry System: SAMARIUM BROMIDE(13759-87-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 13759-87-0(Hazardous Substances Data)

Usage

Uses

Used in Organic Synthesis:
Samarium bromide is used as a reagent for the conversion of carbonyl compounds to alcohols, a transformation that is crucial in the synthesis of various organic compounds.
Used in Catalysis:
In the Chemical Industry, samarium bromide is utilized as a catalyst in cross-coupling reactions, which are essential for the formation of carbon-carbon bonds, and in cyclization reactions, contributing to the synthesis of complex organic molecules.
Used in Asymmetric Synthesis:
Samarium bromide has been investigated for its potential use in catalytic asymmetric synthesis, a field that focuses on the production of enantiomerically pure compounds, which is significant in pharmaceutical development where the stereochemistry of a molecule can affect its biological activity.
Overall, samarium bromide is a multifaceted chemical reagent with applications that span across different areas of organic chemistry, making it an indispensable tool for chemists in both research and industrial settings.

InChI:InChI=1/3BrH.Sm/h3*1H;/q;;;+3/p-3

Upstream product

• 10035-10-6 hydrogen bromide 
• 13517-12-9 samarium(III) bromide hydrate 
• 7726-95-6 bromine 
• 10025-67-9 disulfur dichloride 
• 593-95-3 carbonyl dibromide 
• 7727-15-3 aluminium bromide 
• 98218-66-7 ammonium samarium bromide 
• 98218-67-8 ammonium samarium bromide 

Downstream Products

• 7440-19-9 samarium 
• 121483-68-9 Sm(C₆H₅C₃N₂(CH₃)2ONHCOCH₃)2Br₃ 
• 117476-03-6 Sm(III)(dibenzylsulphoxide)5(bromide)3 
• 169264-78-2 [Sm(C₁₈H₁₇N₃O₂)2Br₂]⁽¹⁺⁾*Br^(1-) = [Sm(C₁₈H₁₇N₃O₂)2Br₂]Br 
• 185027-54-7 [(C₅(CH₃)5)2Sm(CH₂C₆H₅)2K(C₄H₈O)2] 
• 112106-68-0 ClSmC₆H₄SmCl 
• 112106-67-9 BrSmC₆H₄SmCl 
• 107839-21-4 C₆H₄Sm₂Br₂ 

Relevant articles and documents

Thermochemical and structural investigations: Systems alkalimetal bromides/samarium(III)-bromid

The phase diagrams of the systems ABr/SmBr3 were reinvestigated. The findings of Blachnik for the systems with A = Cs, Rb, K were confirmed; however, the dimorphic compound K3SmBr6 is stable only above 572 K. The equilibrium temperature, found by e.m.f.-measurements in a solid state galvanic cell for the reaction KBr+K2SmBr5=L-K3SmBr6, is smaller (522 K). The formation temperature for Rb3SmBr6 is 279 K (DTA) and 256 K (e.m.f.) resp. By solution calorimetry was proved that the compounds Cs2SmBr5 and KSm2Br7 don't exist at 0 K. In the system NaBr/SmBr3 only one hitherto unknown dimorphic compound Na3SmBr3 exists above 473 K. L-Na3SmBr crystallizes in the hexagonal space group R3, above 519 K H-Na3SmBr6 has the monoclinic cryolite-structure. Powder patterns of other compounds not yet investigated - H/L-A3SmBr6, ASm2Br7 (A=Cs, Rb, K) and Cs2SmBr5 - were indexed analogously to known structure families. The structure parameters of SmBr3·6H2O were determined by single-crystal measurements.

Lanthanide containing ionic liquid crystals: EuBr2, SmBr 3, TbBr3 and DyBr3 in C12mimBr

Doping the ionic liquid crystal C12mimBr with various lanthanide halides yields interesting novel liquid crystalline and luminescent materials. The thermal phase behavior of all compounds was investigated by hot-stage polarizing optical microscopy and differential scanning calorimetry and the photophysical properties were determined by luminescence spectroscopy. C 12mimBr itself is an ionic liquid crystal that shows bluish-white emission upon excitation with UV light due to transitions in the imidazolium p-system. Doping lanthanide bromides into C12mimBr with concentrations of about 1 mol-% does not affect the liquid crystalline behavior of the host materials to a great extent and room temperature liquid crystals are obtained. All materials show an appreciable luminescence. EuBr2 in C12mimBr yields a material, which shows a blue emission originating from 4f-5d-transitions. SmBr3-doped samples show a red and TbBr 3 samples a green luminescence. Upon doping C12mimBr with DyBr3 an orange luminescent liquid crystalline material is obtained. Most interestingly the emission color for the TbBr3 and DyBr 3 containing materials can be tuned from bluish-white (mainly C 12mimBr emission) to green (for TbBr3) and orange-yellow (for DyBr3) depending on the wavelength of the excitation light used.

Structural characterization of methanol substituted lanthanum halides

The first study into the alcohol solvation of lanthanum halide [LaX3] derivatives as a means to lower the processing temperature for the production of the LaBr3 scintillators was undertaken using methanol (MeOH). Initially the de-hydration of {[La(μ-Br)(H2O)7](Br)2}2 (1) was investigated through the simple room temperature dissolution of 1 in MeOH. The mixed solvate monomeric [La(H2O)7(MeOH)2](Br)3 (2) compound was isolated where the La metal center retains its original 9-coordination through the binding of two additional MeOH solvents but necessitates the transfer of the innersphere Br to the outersphere. In an attempt to in situ dry the reaction mixture of 1 in MeOH over CaH2, crystals of [Ca(MeOH)6](Br)2 (3) were isolated. Compound 1 dissolved in MeOH at reflux temperatures led to the isolation of an unusual arrangement identified as the salt derivative {[LaBr2.75·5.25(MeOH)]+0.25 [LaBr3.25·4.75(MeOH)]-0.25} (4). The fully substituted species was ultimately isolated through the dissolution of dried LaBr3 in MeOH forming the 8-coordinated [LaBr3(MeOH)5] (5) complex. It was determined that the concentration of the crystallization solution directed the structure isolated (4 concentrated; 5 dilute) The other LaX3 derivatives were isolated as [(MeOH)4(Cl)2La(μ-Cl)]2 (6) and [La(MeOH)9](I)3·MeOH (7). Beryllium Dome XRD analysis indicated that the bulk material for 5 appear to have multiple solvated species, 6 is consistent with the single crystal, and 7 was too broad to elucidate structural aspects. Multinuclear NMR (139La) indicated that these compounds do not retain their structure in MeOD. TGA/DTA data revealed that the de-solvation temperatures of the MeOH derivatives 4-6 were slightly higher in comparison to their hydrated counterparts.

Systematics and anomalies in rare earth/aluminum bromide vapor complexes: Thermodynamic properties of the vapor complexes LnAl3Br12 from Ln = Sc to Ln = Lu

Systematics and anomalies in the rare earth/aluminum bromide vapor complexes have been investigated by the phase equilibrium-quenching experiments. The measurements suggest that the LnAl3Br12 complexes are the predominant vapor compl

M3NS3 (M = La - Nd, Sm, Gd - Dy): Structure and magnetism of 3:1:3-type nitride sulfides of trivalent lanthanides

Nitride sulfides of the trivalent lanthanides with the composition M 3NS3 (M = La - Nd, Sm, Gd - Dy) can be prepared by the oxidation of the respective lanthanide metal with sulfur, sodium azide (NaN 3), and the corresponding lanthanide tribromide (MBr3) when an additional flux (NaBr) is used. Temperature ranges from 800 to 900 °C for the thermal treatment of the reaction mixtures in evacuated silica tubes secure the formation of bright to dark brown, transparent, lath shaped single-crystals. The orthorhombic crystal structure (Pnma, Z = 4) was determined from single-crystal X-ray diffraction data (La3NS3: a = 1215.13(5), b = 415.90(2), c = 1322.12(5) pm, Ce3NS3: a = 1206.28(4), b = 410.16(1), c = 1307.18(5) pm, Pr3NS3: a = 1205.45(7), b = 405.35(2), c = 1297.58(8) pm, Nd3NS3: a = 1207.82(5), b = 401.31(1), c = 1295.20(4) pm, Sm3NS3: a = 1201.58(6), b = 394.84(2), c = 1285.63(7) pm, Gd3NS3: a = 1197.17(7), b = 388.22(3), c = 1286.92(8) pm, Tb3NS3: a = 1191.62(7), b = 385.07(3), c = 1282.44(8) pm, and Dy3NS3: a = 1187.66(7), b = 382.55(3), c = 1276.77(8) pm). There are three crystallographically different M3+ cations present in coordination of both the N3- and the S2- anions. However, [NM 4]9+ tetrahedra connected via two common corners (c) to form linear chains ∞1{[N(M1)1/1 t(M2)1/1t(M3)2/2c] 6+} along [010] build up the main structural feature. A non-linear behaviour for the decreasing lattice constants of the pseudo-isotypic series from La3NS3 to Dy3NS3 concerning the a- and c-axes is observed along with the lanthanoid contraction caused by the diminishing coordination sphere of (M1)3+ (CN = 7) and (M3) 3+ (CN = 7) moving from the light to the heavier lanthanides. Curie-Weiss-type magnetic behaviour for Dy3NS3 with μeff = 10.3(1) μB for DyN1/3S corresponding to a 6H15/2 groundstate for Dy3+ at higher temperatures and antiferromagnetic ordering of the Dy3+ moments below 5 K is observed.

Carbonyl dibromide: A novel reagent for the synthesis of metal bromides and bromide oxides

Carbonyl dibromide reacted with a wide selection of d- and f-block transition-metal oxides to form either the metal bromide or bromide oxide; the reactions are driven by the elimination of carbon dioxide. In a typical reaction the metal oxide was treated with an eight-fold excess of COBr2 in a sealed Carius tube at 125°C for 10 d (to ensure complete reaction of the metal oxide). As COBr2 and the reaction by-products (CO2, CO and Br2) are all volatile, the desired products were obtained in essentially quantitative yield and a high degree of purity. Under these conditions V2O5, MoO2, Re2O7, Sm2O3 and UO3 were converted into VOBr2, MoO2Br2, ReOBr4, SmBr3 and UOBr3, respectively. This route offers great potential for the preparation of many known bromide derivatives of the transition metals, lanthanides and actinides, in a very convenient manner, and also for the synthesis of new materials. A modified synthesis of carbonyl dibromide was elaborated, and its 17O NMR and electron impact mass spectra are reported for the first time.

COMPLEXES OF YTTRIUM AND LANTHANIDE BROMIDES WITH 4-N-(2'-HYDROXYBENZYLIDENE)AMINOANTIPYRINEY

Ten new complexes of bromides of yttrium and lanthanides with 4-N-(2'-hydroxybenzylidene)aminoantipyrine (HBAAP) having the formula [Ln(HBAAP)2Br2]Br, where Ln = Y, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho and Er have been prepared and characterized. Molar conductance studies indicate 1:1 electrolytic behaviour for these complexes. Their infrared spectra show that HBAAP acts as a neutral tridentate ligand coordinatin throuhg the carbonyl oxzgen, azomethine nitrogen and phenolic oxygen. Electronic spectra showthe week covalent character in the metal-ligand bond. Thermogravimetric studies indicate that these complexes are stable up to about 170.degree .C and undergo decomposition in two stages forming the respective metal bromides as the final products.

Carbonyl Dibromide: a Novel Reagent for the Synthesis of Metal Bromides and Oxide Bromides

Carbonyl dibromide reacts with a wide selection of d- and f-block transition metal oxides to form either the metal bromide or metal oxide bromide; the reactions are driven by the elimination of carbon dioxide.