CAJ | 학술논문

国际珠宝交易市场上最近出现了一批价值不菲的无色透明的宝石级钠沸石刻面成品，为提供快速区分其与仿制品材料的依据，文章通过红外光谱和拉曼光谱对三颗钠沸石样品的振动光谱进行了研究。结果表明，其红外光谱主要表现为：4000～1200 cm－1的吸收峰是结构中水导致的吸收；1200～600 cm －1的强吸收与TO4四面体的内部T—O（T为Si或Al）的反对称和对称伸缩振动有关。拉曼光谱散射峰主要分布在300～600和700～1200 cm －1两个区间。300～360 cm －1处较弱强度的拉曼散射峰是由于结构中水分子所导致。482 cm －1处中等强度的峰归属于硅氧四面体内部由于变形导致的拉曼位移。726 cm－1处的拉曼散射峰归属于Al—O的伸缩振动；974，1038，1084 cm－1的三处拉曼散射峰都是Si—O的伸缩振动导致的拉曼位移。
국제주보교역시장상최근출현료일비개치불비적무색투명적보석급납비석각면성품，위제공쾌속구분기여방제품재료적의거，문장통과홍외광보화랍만광보대삼과납비석양품적진동광보진행료연구。결과표명，기홍외광보주요표현위：4000～1200 cm－1적흡수봉시결구중수도치적흡수；1200～600 cm －1적강흡수여TO4사면체적내부T—O（T위Si혹Al）적반대칭화대칭신축진동유관。랍만광보산사봉주요분포재300～600화700～1200 cm －1량개구간。300～360 cm －1처교약강도적랍만산사봉시유우결구중수분자소도치。482 cm －1처중등강도적봉귀속우규양사면체내부유우변형도치적랍만위이。726 cm－1처적랍만산사봉귀속우Al—O적신축진동；974，1038，1084 cm－1적삼처랍만산사봉도시Si—O적신축진동도치적랍만위이。
Recently ,there is a batch of colorless faceted gem‐quality natrolite appear in the international jewelry market .In order to provide some information that can help us to distinguish them from the imitations .The infrared spectrometer and Raman spec‐trometer were employed to study the characteristics of the vibrational spectrum of three natrolite samples in this article .The typ‐ical infrared spectra shows that :the absorption region 4 000~1 200 cm -1 is induced by stretching vibration of the hydroxyl group ,the strong absorption peaks range from 1 200~600 cm-1 are relative with the anti‐symmetry and symmetry stretching vi‐bration of tetrahedral T —O bonds (T=Si or Al) .The Raman spectra scattering peaks are located in the range of 300~600 and 700~1 200 cm -1 .The low intensity Raman scattering spectrum in the range of 300~360 cm -1 corresponds to the vibration of the water molecules in the crystal .The medium intensity Raman scattering spectrum is assigned to the deformation of SiO 4 tetra‐hedra .The Raman spectra scattering peak at 726 cm -1 is assigned to the stretching vibration of Al—O ;The Si—O stretching vi‐bration displays the Raman spectra scattering peaks at 974 ,1 038 and 1 084 cm -1 .