Fragmentation modes of alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl liquid crystalline derivatives

Yi WANG; Ping ZHANG; Sheng-xiu WU; Wu-jun QUAN; Jian-tao LI; Ya-jun LIU; Yuan-yuan SUN; Tong ZHAO

doi:10.3788/YJYXS20163111.1046

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Fragmentation modes of alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl liquid crystalline derivatives

Material and Devic | 更新时间：2020-08-12

- Fragmentation modes of alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl liquid crystalline derivatives
- Chinese Journal of Liquid Crystals and Displays Vol. 31, Issue 11, Pages: 1046-1054(2016)
- 作者机构：
  
  西安瑞联新材料股份有限公司, 陕西西安 710077
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20163111.1046
  CLC： O657.63
- Received：25 July 2016，
  
  Accepted：08 September 2016，
  
  Published：2016-11
- 稿件说明：
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Yi WANG, Ping ZHANG, Sheng-xiu WU, et al. Fragmentation modes of alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl liquid crystalline derivatives[J]. Chinese journal of liquid crystals and displays, 2016, 31(11): 1046-1054.
DOI：

Yi WANG, Ping ZHANG, Sheng-xiu WU, et al. Fragmentation modes of alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl liquid crystalline derivatives[J]. Chinese journal of liquid crystals and displays, 2016, 31(11): 1046-1054. DOI： 10.3788/YJYXS20163111.1046.

摘要

利用气相色谱质谱联用仪（GCMS）对烷基环己基苯、烷基环己基联苯两类液晶单体共72个化合物在EI离子化模式下进行分析，结果表明此两类化合物具有相同的裂解途径和裂解机理。为烷基环己基苯类衍生物的结构解析与质量监测提供参考。其裂解途径主要为与苯环连接的环己烷发生开环裂解反应，生成特征的：苯乙烯（联苯乙烯）基的奇电子离子、苯丙烯（联苯丙烯）基的偶电子离子以及卓鎓偶电子离子。当苯环部分含有乙氧基以上取代基时，分子离子及其特征离子会发生重排脱去烯烃生成对应的苯（联苯）酚离子。对于环己基联苯类化合物在特征离子生成的基础上会进一步生成质量数减少2的脱氢离子。

Abstract

The EI mass spectra of two kinds of liquid crystals alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl derivatives were analyzed with the gas chromatogram/mass spectrometer

and the fragmentation rules of them were summarized in this paper. The EI mass spectra in analogy with the Alkylcyclohexylbenzene derivatives and alkylcyclohexylbiphenyl derivatives

abundant molecular ions are presented in all the spectra. They have three most characteristic ions

the odd electron ions at m/z100+R

[m/z 175+R

] and their satellites the even electron ions at m/z 87+R

and m/z 113+R

[m/z 162+R

、m/z 188+R

] in the mass spectra.

关键词

Keywords

references

章于川,方胜阳,沈金平. 一类烷基环己基苯甲酸酯类液晶的合成[J]. 安徽大学学报(自然科学版), 2007,31(1):66-69.

ZHANG Y C, FANG S Y, SHEN J P. Synthesis of 4-cyano-3-fluorophenyl 4-(4-alkylcyclohexyl) benzoate[J]. Journal of Anhui University (Natural Science Edition) , 2007, 31(1):66-69. (in Chinese)

沈曼,郭丽丽,刘建军. 液晶的研究进展[J]. 河北师范大学学报(自然科学版), 2005,29(2):154-157.

SHEN M, GUO L L, LIU J J. Study progress of liquid crystals[J]. Journal of Hebei Normal University (Natural Science Edition), 2005, 29(2):154-157. (in Chinese)

TRAVADI J J, VADODARIA M S, LADVA K D, et al. Dependence of mesomorphism on tail group in combination with a lateral methoxy group[J]. Molecular Crystals and Liquid Crystals, 2016, 625(1):63-71.

VINAYAKA A C, MANJUNATH R, KUMAR S M, et al. Synthesis, characterization, crystal structure, and hirshfeld surface analysis of (2Z)-3-(methylsulfanyl)-2,3-diphenylprop 2-enenitrile[J]. Molecular Crystals and Liquid Crystals , 2015, 609(1):140-154.

陈然,安忠维,陈新兵,等. 含乙撑桥键二苯炔四环液晶的合成及性能[J]. 高等学校化学学报, 2014,35(7):1433-1438.

CHEN R, AN Z W, CHEN X B, et al. Syntheses and properties of four-ring liquid crystals with ethylene and internal alkyne bridge[J]. Chemical Journal of Chinese Universities , 2014, 35(7):1433-1438. (in Chinese)

张敏,孙莉霞,魏俊发,等. SCL-1型液晶的质谱法剖析[J]. 现代仪器, 2003,9(6):15-17.

ZHANG M, SUN L X, WEI J F, et al. Analysis of a another kind of SCL liquid crystal by the mass spectra method[J]. Modern Instruments, 2003, 9(6):15-17. (in Chinese)

张敏,孙莉霞,史真. 苯甲酸酯类液晶的CI、EI质谱研究及比较[J]. 质谱学报, 2004,25(3):169-171.

ZHANG M, SUN L X, SHI Z. Comparation of the chemical ionization and electroionization mass spectra for liquid crystal of phenyl benzoate[J]. Journal of Chinese Mass Spectrometry Society, 2004, 25(3):169-171. (in Chinese)

王毅,李敏. 两类氟代对三联苯液晶化合物的质谱裂解规律分析[J]. 质谱学报, 2015,36(3):255-260.

WANG Y, LI M. Fragmentation rules for two kinds of fluoro-p-terphenyl liquid crystalline compounds[J]. Journal of Chinese Mass Spectrometry Society, 2015, 36(3):255-260. (in Chinese)

傅桂香,亓伟年,俞璐,等. 新型含氟液晶类化合物的质谱研究[J]. 有机化学, 1995,15(2):150-160.

FU G X, QI W N, YU L, et al. Mass spectra of some new fluorinated liquid crystals[J]. Chinese Journal of Organic Chemistry , 1995, 15(2):150-160. (in Chinese)

张敏,史真.2-(4'-正烷基苯)-4,6-二羟基-5-烷基嘧啶类液晶的EI质谱研究[J]. 液晶与显示, 2006,21(3):218-221.

ZHANG M, SHI Z. Mass spectra of liquid crystals of 2-(4'-alkylbenzyl)-5-alkyl-4, 6-dihydroxyl-pyrimidine derivatives[J]. Chinese Journal of Liquid Crystals and Displays, 2006, 21(3):218-221. (in Chinese)

王光辉,熊少祥.有机质谱解析[M].北京:化学工业出版社,2005:21-22.

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