Regioselective Synthesis of New Chelating Bistetrazole Ligands and Study of Their Coper(II) Complexes

• Autorzy: Voitekhovich S. , Gaponik P. N. , Pytleva D. S. , Lyakhov A. S. , Ivashkevich O. A.
• Języki publikacji: EN

Abstrakty

EN

Synthesis of some new N-substituted bistetrazoles is described. 1,5-Bis(2-tert-butyl- 5-tetrazolyl)-3-oxopentane (btop) is obtained by regioselective alkylation of 1,5-bis(5- tetrazolyl)-3-oxopentane with tert-butyl alcohol in 96% sulphuric acid media. 1,5-Bis(1- methyl-5-tetrazolyl)-3-oxopentane (mtop) is synthesized by exhaustive methylation of 1,5-bis(2-tert-butyl-5-tetrazolyl)-3-oxopentane followed by the removal of tert-butyl group from the formed tetrazolium methyl sulphate in acidic conditions. Isomeric tetrazolium perchlorate is converted in analogous conditions to perchlorate of 1,5-bis(1- methyl-5-tetrazolyl)-3-oxopentane. Synthesized bistetrazoles are found to react with copper(II) chloride in ethyl alcohol or acetone solutions giving solid [Cu(mtop)Cl2] and [Cu(btop)Cl2] complexes. Perchlorate of 1,5-bis(1-methyl-5-tetrazolyl)-3-oxopentane reacts with copper(II) chloride in ethyl alcohol leading to formation of complex [Cu(mtop)Cl2], whereas in aqueous solution complex [Cu(mtop)2](ClO4)2 is formed. According to X-ray study of chloride complexes, Cu(II) is surrounded by a tridentate chelating ligand and two halide anions resulting in distorted square pyramidal geometry.

Słowa kluczowe

EN

X-ray structure; tetrazoles; tetrazolium salts; selective alkylation; chelating ligands; complexes with copper(II) chloride

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2002
• Tom: Vol. 76 / nr 10
• Strony: 1371--1380
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Voitekhovich S.

• Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya str., 220050 Minsk, Republic of Belarus

autor

Gaponik P. N.

• Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya str., 220050 Minsk, Republic of Belarus

autor

Pytleva D. S.

• Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya str., 220050 Minsk, Republic of Belarus

autor

Lyakhov A. S.

• Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya str., 220050 Minsk, Republic of Belarus

autor

Ivashkevich O. A.

• Research Institute for Physical Chemical Problems of the Belarusian State University, 14 Leningradskaya str., 220050 Minsk, Republic of Belarus

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