Diverse
coordination of CuX (X = Ñl, Br)
towards N-allylbenzotriazole
Chem.
Met. Alloys 9 (2016)
61-65
https://doi.org/10.30970/cma9.0323
Yurii SLYVKA, Evgeny
GORESHNIK, Marian MYS’KIV
The crystalline Cu(I)
complex [Cu(1-Abtr)Br] (1-Abtr = 1-allylbenzotriazole) was
obtained by means of the alternating-current electrochemical technique and was
characterized by X-ray single crystal diffraction. The crystal structure is monoclinic, space group P21/c, Z = 4, a = 4.110(2), b = 13.858(4), c = 17.272(5) Å,
β = 90.14(3)°, V = 983.7(6) Å3, at 200 K. The Ñu(I) atoms possess a distorted tetrahedral
coordination environment involving two N atoms from two adjacent triazole molecules and two bridging Br atoms, while the allylic C=C bond of 1-Abtr
does not participate in the metal coordination. On the contrary, reaction of CuCl and Cu(Cl,Br)
with N-allylbenzotriazole
under similar conditions results in π,σ-complexes,
revealing the (C=C),N-bidentate bridging role of 1-Abtr.
Fragment of [Cu(1-Abtr)Br]
crystal structure.
Keywords
Triazole / Copper(I)
/ Complex / Crystal structure