Cooperative hydrogen-bonded chain in molecular ionic complex of 5,5′-dibromo-2,2′-biphenol with 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene hydrofluoride

被引：6

作者：

Wojciechowski, G ^{[1
]}

Ratajczak-Sitarz, M ^{[1
]}

Katrusiak, A ^{[1
]}

Brzezinski, B ^{[1
]}

机构：

[1] Adam Mickiewicz Univ Poznan, Fac Chem, PL-60780 Poznan, Poland

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2002年 / 613卷 / 1-3期

关键词：

5,5 '-dibromo-2,2 '-biphenol; fluoride; MTBD; intermolecular hydrogen bond; X-ray structure; FT-IR; H-1 NMR spectroscopy;

D O I：

10.1016/S0022-2860(02)00122-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A complex of 5,5'-dibromo-2,2'-biphenol (DBBPh) with 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (MTBD) hydrofluoride has been studied using X-ray diffraction, FT-IR, and H-1 NMR spectroscopy. The formula unit of the crystal structure consists of a MTBDH+ cation, a fluoride anion, and one neutral molecule of 5,5'-dibromo-2,2-biphenol. In the solid state the F- anion is an acceptor in two very short O-H...F- intermolecular hydrogen bonds of 2.487 and 2.390 Angstrom involving the hydroxyl groups. One oxygen atom of these groups forms also an N+-H...O intermolecular hydrogen bond of 2.775 Angstrom with the MTBDH+ cation. In chloroform and acetonitrile, the structures of the complexes are comparable with those studied previously for 5,5'-dibromo-2,2'-biphenol with MTBD, because the hydrogen fluoride goes into the gas phase during the solution process. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：83 / 90

页数：8

共 18 条

[1] Cooperative intramolecular hydrogen bonds in the structure of 5,5′-dibromo-3-diethylaminomethyl-2,2′-biphenol [J].