VIBRATIONAL-SPECTRA AND ASSIGNMENTS FOR 3,3,4,4-TETRAFLUOROCYCLOBUTENE-D(0), 3,3,4,4-TETRAFLUOROCYCLOBUTENE-D(1), AND 3,3,4,4-TETRAFLUOROCYCLOBUTENE-D(2)

被引：3

作者：

CRAIG, NC

BORICK, SS

COLLIER, CP

HUMM, JS

KIM, H

LEE, LV

机构：

[1] Department of Chemistry, Oberlin College, Oberlin

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1995年 / 51卷 / 01期

关键词：

D O I：

10.1016/0584-8539(94)E0079-P

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Infrared and Raman spectra have been obtained in various physical states for 3,3,4,4-tetrafluorocyclobutene (TFCB) and its singly and doubly deuterated isotopic modifications. Vibrational fundamentals for TFCB are, in cm-1, (a1) 3152, 1564, 1350, 1162, 1034, 755, 500, 277; (a2)-, 957, approximately 610, 348, 133; (b1) 3108, 1338, approximately 1150, 1058, 730, 614, 431; (b2) 1155, 799, 366, 208. Comparably complete assignment of the fundamentals for the d1 and d2 isotopomers suport these assignments. The ring puckering frequencies of 15 halogen-substituted cyclobutenes are compared. The ring puckering mode at 133 cm-1 for TFCB fits into the systematic dependence of the frequency of this mode on mass, location and extent of halogen substitution on the cyclobutene framework.

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页码：45 / 63

页数：19

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