Braeu, Elmar published the artcileOn heterocyclic systems containing bismuth(III). 2. Eight-membered heterocycles Cl/Br/I-M(CH2CH2CH2)2X with Lewis acidic group 15 atoms M = As, Sb, Bi and donor atoms X = NR, S: a contribution to the value of the electronegativity of bismuth(III), Computed Properties of 58929-72-9, the main research area is Pauling electronegativity Group VA element; Group VA element heterocycle transannular interaction; crystal structure antimony nitrogen heterocycle; mol structure antimony nitrogen heterocycle; metallocane.
Paths to the ligands (XCH2CH2CH2)2Z [X = Cl, Br; Z = NR (R = Me, PhCH2, CHMe2, iso-Bu), O, S, Se], to the diGrignard reagents (XMgCH2CH2CH2)2Z (same X, Z), and to the eight-membered Group 15 heterocycles XM(CH2CH2CH2)2Z [I; X = Cl, Br, iodo; M = As, Sb, Bi; Z = NR (R = Me PhCH2, iso-Bu), S] are given. 13C-NMR, IR and Raman spectra are discussed; for the compound ClSb(CH2CH2CH2)2NMe the crystal structure anal. is given: the antimony atom is clearly Lewis acidic with ψ-trigonal-bipyramidal coordination and a transannular Sb…N interaction of 2.385(2)Å. For such a configuration the values of the 13C-NMR chem. shifts of the α-CH2-groups (e.g. ClM(αCH2CH2CH2)2NMe (M = As, Sb, Bi) 34.6, 25.9, 46.6 ppm) display clearly a sequence N > Bi > P ≈ As > Sb for the Pauling electronegativities of the group 15 elements: a value as high as 2.3 for bismuth is suggested.
Polyhedron published new progress about Crystal structure. 58929-72-9 belongs to class bromides-buliding-blocks, name is 1-Bromo-3-(3-bromopropoxy)propane, and the molecular formula is C6H12Br2O, Computed Properties of 58929-72-9.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary