Nitrobenzene infrared spectrum

Cyanopentakis(benzyl isonitrile)iron(II) bromide, which represents a new class of iron isonitrile complexes, was investigated in some detail. This complex is diamagnetic and dissociates in nitrobenzene into two univalent-univalent ions as indicated by cryoscopic and conductivity measurements. It exhibits two peaks in the triple bond region of the infrared spectrum one at 2200 cm.—1 assigned to the isonitrile groups and another at 2092 cm.-1 assigned to the cyano group. The structure proof of cyanopentakis (benzyl isonitrile) iron (II) bromide is ... 

Fig. 3.38 Infrared spectrum of nitrobenzene recorded as a liquid film.

Dichloro(l,5-cyclooctadiene)palladium(II) is an air-stable yellow solid. The compound is slightly soluble in solvents such as chloroform, sulfolane (tetrahydrothiophene 1,1-dioxide), and nitrobenzene and reacts with dimethyl sulfoxide to yield dichlor obis (dimethyl sulfoxide)palladium(II). The p.m.r. spectrum of the compound in chloroform shows resonances at 3.68r for the olefinic protons and at 7.31r for the methylene protons. The infrared spectrum in Nujol has strong absorption maxima at 1489, 1419, 1337, 1088, 999, 867, 825, 794, 768, 325, and 295 cmr1. 

Tetracarbonyl-di-/i-chlorodichlorodinitrosyldirhenium is a bright-yellow crystalline solid. Its infrared spectrum is as follows v(CO)(CCl4) = 2106 (vs), 2047 (vs) u(NO) (CCU) = 1803 (vs) u(ReCl) (Nujol) 331 (s), 290 (s), 252 (m)cm-i. The compound is soluble in acetone, benzene, nitrobenzene, 1,2-dichloroethane, carbon tetrachloride, and chloroform and insoluble in aliphatic hydrocarbons. It is very stable both as a solid and in solution. 

Infrared spectrum of the product of 1-iodo-2-methyl-4-nitrobenzene and 1-hexyne. The sharp peak at 2227 cm" is assigned to the triple bond in 1-hexynyl-2-methyl-4-nitrobenzene, and the two sharp peaks at 1518 and 1343 cm" are assigned to the nitro group. 

Infrared spectrum of nitrobenzene (neat liquid, salt plates). 

Yellow prisms (trigonal trapazohedral) from alcohol. d]s 1.23. mp 95°. bp 346-348° bp12 188°. Absorption spectrum Hantzsch, Schwiete, Ber. 49, 216 (1916). uv max (ethanol) 260 nm (e 22,000). Infrared in chloroform 5.93 6.22 6.8S Insol in water sol in alcohol, ether, chloroform, ethyl acetate, benzene, toluene, nitrobenzene. 

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