(1. 淮北煤炭師范學(xué)院化學(xué)系，淮北 235000； 2. 中南工業(yè)大學(xué)化學(xué)系，長(zhǎng)沙410083)
摘 要: 研究 了CoNaY，NiNaY，CdNaY，CaNaY及晶體結(jié)構(gòu)已被破壞的“CrNaY"，在523 K 和10-1Pa條件下處理后及其吸附苯后的紅外光譜，認(rèn)為415 cm-1譜帶歸屬于六元環(huán)的振動(dòng)，403cm-1 歸屬于十二元環(huán)的振動(dòng)，511 cm-1 吸收譜帶歸屬于Si—O1—T的彎曲振動(dòng)。 \解釋了Y型分子篩的Si—O1—T易于斷裂及511cm-1譜帶頻率大于462cm-1譜帶頻率的原因。
關(guān)鍵字: 分子篩；紅外光譜；CoNaY；NiNaY；CdNaY；CaNaY；CrNaY
（1. Department of Chemistry, Huaibei Coal Mining Teachers College, Huaibei 235000, P. R. China
2. Department of Chemistry, Central South University of Technology, Changsha 410083, P. R. China）
Abstract:To detail assignment of Y-type zeolite framework IR vibrational bands, CoNaY, NdNaY and CrNaY with demolished structure were treated at the conditions of 523K, 10-1Pa and adsorbed benzene molecules, then their IR spectra were investigated. It is suggested that the band at 415cm-1 is assigned to vibration of 6R , the band at 403cm-1 is assigned to vibration of 12R and the band at 511cm-1 is assigned to bending vibration of Si—O1—T. The reasons of Si—O1—T is subject to be broken and the band at 511 cm-1 is situated higher frequence than the band at 462 cm-1 have been explained.
Key words: Y-type zeolite; infrared spectrum; CoNaY; NiNaY; CdNaY; CaNaY
