Hydrogen bonds in the adduct of 1,8-bis(N,N-dimethylamino)naphthalene (DMAN) with 4-(p-nitrophenyl)disic acid (NPDA)

被引：5

作者：

Grech, E

Malarski, Z

Milart, P

Sawka-Dobrowolska, W

Sobczyk, L

机构：

[1] Wroclaw B Beirut Univ, Fac Chem, PL-50383 Wroclaw, Poland

[2] Tech Univ Szczecin, Inst Fundamental Chem, PL-71065 Szczecin, Poland

[3] Jagiellonian Univ, Fac Chem, PL-30060 Krakow, Poland

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1997年 / 437卷

关键词：

X-ray diffraction; IR spectroscopy; hydrogen bonding;

D O I：

10.1016/S0022-2860(97)00130-0

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：

The structure and IR spectra of the 1:1 ionic adduct of 1,8-bis(dimethylamino)-naphthalene (DMAN) with 4-(p-nitrophenyl)disic acid (NPDA) were studied. The adduct crystallises in a triclinic system, space group P (1) over bar, a = 9.066(2), b = 10.156(2), c = 12.716(3) Angstrom, alpha = 99.02(2), beta = 107.84(3), gamma = 100,46(3)degrees, Z = 2. In the protonated DMAN the [NHN](+) hydrogen bridge of 2.586(2) Angstrom length is close to symmetric with the nu(NHN) stretching vibration band located in the region 300-700 cm(-1) The NPDA deprotonated molecules form centrosymmetric dimeric anions with the amide type N-H ... O hydrogen bonds of 2.827(2) Angstrom length. The negative charge of the anionic units is largely diffused over the nitrophenyl groups. The IR spectrum confirms medium strong N-H ... O hydrogen bonds formed in dimeric anions. (C) 1997 Elsevier Science B.V.

引用

页码：81 / 89

页数：9

共 14 条

[1] Crystal chemistry of tetraradial species .8. Mix and match: Cation geometry, ion packing, hydrogen bonding, and pi-pi interactions in cis-2,2'-bipyridinium(1+) and 1,10-phenanthrolinium(1+) tetraphenylborates - And what about proton sponges? [J].