13967-29-8

Basic information

• Product Name: nitrogen monobromide
• Synonyms: nitrogen monobromide
• CAS NO: 13967-29-8
• Molecular Weight: 95.9266
• Mol File: 13967-29-8.mol

Chemical Properties

• CAS DataBase Reference: nitrogen monobromide(CAS DataBase Reference)
• NIST Chemistry Reference: nitrogen monobromide(13967-29-8)
• EPA Substance Registry System: nitrogen monobromide(13967-29-8)

Safety Data

• Hazardous Substances Data: 13967-29-8(Hazardous Substances Data)

Upstream product

• 15656-19-6 hypobromous acid 
• 7664-41-7 ammonia 
• 7727-37-9 nitrogen 
• 7726-95-6 bromine 
• 7782-79-8 hydrogen azide 
• 10097-32-2 bromine 
• 13973-87-0 bromine azide 
• 14700-96-0 clorine 
• 22118-09-8 2-bromoacetyl chloride 
• 13967-06-1 N-monofluoroamine 

Downstream Products

• 302-01-2 hydrazine 

Relevant articles and documents

SELECTIVE OLEFIN METATHESIS WITH CYCLOMETALATED RUTHENIUM COMPLEXES

This invention relates generally to C—H activated ruthenium olefin metathesis catalyst compounds which are stereogenic at the ruthenium center, to their preparation, and the use of such catalysts in the metathesis of olefins and olefin compounds. In particular, the invention relates to the use of C—H activated ruthenium olefin metathesis catalyst compounds in Z-selective olefin metathesis reactions, enantio-selective olefin metathesis reactions, and enantio-Z-selective olefin metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.

Uptake of NH3 and NH3 + HOBr reaction on ice surfaces at 190 K

The uptake of NH3 and the heterogeneous reaction of NH 3 + HOBr → products on ice surfaces at 190 K have been investigated in a flow reactor coupled with a differentially pumped quadrupole mass spectrometer. The uptake coefficient γt for NH3 was determined to be (3.8 ±1.4) × 10-4 on ice films at 189.8 K, for a partial pressure of NH3 in the range of 7.0 × 10-7 to 3.8 × 10-6 torr. The amount of NH 3 uptake on the ice film was determined to be >2.9 × 10 15 molecules/cm2, based on the total ice surface area at 189.2 K. The heterogeneous reaction of NH3 + HOBr on ice surfaces has been studied at 190 K. The reaction probability γt was determined to be (5.3 ±2.2) × 10-4 and was found to vary insignificantly as HOBr surface coverage changes from 2.1 × 10 13 to 2.1 × 1014 molecules/cm2. A reaction pathway is proposed on the basis of experimental observations.

MCH antagonists and their use in the treatment of obesity

The present invention discloses compounds which, are novel antagonists for melanin-concentrating hormone (MCH), as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such MCH antagonists as well as methods of using them to treat obesity, metabolic disorders, eating disorders such as hyperphagia, and diabetes.

Benzimidazole derivatives

This invention provides compounds having the structure: wherein each of R1, R2, R3and R9is independently H; straight chain or branched, substituted or unsubstituted C1-C7alkyl, C2/sub

Generation of NBr(a1Δ) by the reaction of N3 radicals with Br atoms: A flow reactor source for quenching rate constant measurements

The reaction between azide radicals (N3) and Br atoms is shown to produce electronically excited NBr(a1Δ) molecules in a room temperature flow reactor. This chemical system provides adequate concentration of NBr(a1Δ) so that this molecule can be systematically studied. The yield of NBr(b1Σ+) is minor. The quenching reactions of NBr(a) with HCl, HBr, HI, NH3, Br2, CF2Br2, and O2 were examined; the rate constants are (22 ± 5) × 10-14, (280 ± 30) × 10-14, (2300 ± 200) × 10-14, (35 ± 3) × 10-14, (2600 ± 300) × 10-14, (37 ± 6) × 10-14, and (230 ± 30) × 10-14 cm3 molecule-1 s-1, respectively.

Microwave spectroscopy of the NBr radical in the X3Σ- state

The pure rotational spectrum of N79Br and N81Br in the electronic ground state was measured. The measurement was carried out using a source-modulated microwave spectrometer with a 2 m free space discharge cell in the frequency region from 213 GHz to 381 GHz. The precise molecular constants including the rotational and the centrifugal distortion constants, the spin-spin and the spin-orbit interaction constants, and the hyperfine coupling constants were accurately determined.

Monobromamines en milieu aqueux. I. Reactivite vis-a-vis de NH3, des amines et des hydrazines

The reactivity of NH2Br in aqueous medium with ammonia, amine and hydrazine was studied at 20.8 deg C, in the pH range from 8.0 to 14.6.At pH > 12, the kinetic for NH2Br + RNH2 (R = H, CH3) reactions results from the superposition of spontaneous decomposition of monobromamine, formation of hydrazine (slow reaction) and its fast oxydation.The hydrazine oxydation by monohaloamine is directly dependant on the halogen electronegativity.At pH a defined concentration of NH2Br, the instability limit reaches a minimum at pH 9 to 10.There is a great analogy in NH2Br and NH2Cl behaviours.Mots cles: monobromamine, reactivite, hydrazine, amine, ammoniaque

Matrix effects on radiative and radiationless rates of NBr b1Σ+ and a1Δ trapped in solid argon

NBr in solid argon has been excited to the b1Σ+ state with a pulsed tunable dye laser.In addition to the well-known fluorescence spectrum of the b state, infrared emission from the vibrationally relaxed a 1Δ state was detected at 1086 nm.Three major trapping sites were resolved in absorption and fluorescence excitation spectra of the b-X system.Additional sites could be identified in the excitation spectrum of the a state, which is populated via the b state by internal conversion.There is a weak site elfect on the lifetime of the vibrationally relaxed b state, which varies between 40 and 30 μs.Vibrational relaxation rates in the b state show a stronger site dependence.Internal conversion from b 1Σ+ to a 1Δ accounts for 1Σ+, v = 0.Orbitally forbidden transitions to the X10+ component of the ground state were identified 23.0 to 25.5 cm-1 on the high-energy side of the more intense a 1Δ X21 transition of several sites.The lifetime of the a state varies between 152 12 ms in the least perturbed site and 121 15 ms in the site with the strongest a 1Δ X10+ forbidden component.NBr trapped in double vacancies of pure fcc argon, of single stacking faults, and of multiple stacking faults ( hcp pockets ) in argon, can account for the sites.

Radiative and collisional decay of NBr(b1Σ+,v')

NBr(b1Σ+, ν'), υ'10 is produced by photolysis of BrN3 at 193 nm.Using this method, radiative decay rates for υ' = 0, 2, and 5 of the b1Σ+, state were measured and were found to be ca. 2.5 * 104 s-1.The rate constant for NBr ( b ) quenching by collisions with BrN3 was determined to be 1.57 * 10-10 cm3 s-1 for υ' = 0 and slightly faster for υ' 0.The nascent vibration distribution of NBr(b1Σ+) produced by 193 nm photolysis of BrN3 was found to be inverted, with a maximum population in υ' = 2.The overall quantum yield for production of NBr ( b1Σ+) by the photodissociation is 0.12.

Photodissociation of bromine azide

Bromine azide was photodissociated by using excimer laser sources at 222 and 308 nm.The primary fragments produced are N2(A 3Σu+) and NBr(X 3Σ-), with some N2(B 3Πg) produced at 222 nm.In contrast to analogous experiments with ClN3, NBr(b 1Σ+) was not observed.From the formation of these products, it is concluded that the heat of formation of BrN3 is greater than 122 kcal/mol.The N2(A 3Σu+) produced by photodissociation decays by a combination of pseudo-first order and second order processes.The first order process is reaction with the parent BrN3, generating N2(B 3Πg) as a product.The rate constant for N2(A 3Σu+) quenching by BrN3 is 1,2 +/- 0,2*10-12 cm3 molecule-1 s-1.This first order process dominates for photolysis at 222 nm.The second order process involves reaction of N2(A 3Σu+) with another photodissociation fragment, and produces intense emission in the vicinity of 292 nm.This emission has been tentatively identified as the D'(3Π2g) -> A'(3Π2u) transition in Br2.The second order process is much more important in the decay of N2(A3Σu+) produced by photolysis at 308 nm.