光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2015年
8期
2241-2245
,共5页
郭琳%黄昆%郭然%贺安琪%翁诗甫%杨展澜%赵莹%夏锦明%徐怡庄%康廷国%吴瑾光
郭琳%黃昆%郭然%賀安琪%翁詩甫%楊展瀾%趙瑩%夏錦明%徐怡莊%康廷國%吳瑾光
곽림%황곤%곽연%하안기%옹시보%양전란%조형%하금명%서이장%강정국%오근광
磷酸三丁酯%超浓盐酸%酸水摩尔比%铜离子
燐痠三丁酯%超濃鹽痠%痠水摩爾比%銅離子
린산삼정지%초농염산%산수마이비%동리자
Tributyl phosphate (TBP)%Super-concentrated HCl%nH + /nH2O%Copper ion
利用磷酸三丁酯形成的反胶束在常温常压下制备出一种超浓盐酸，其酸水摩尔比（nHCl／nH2 O ）在0.50～1.50之间，高于常温常压下饱和浓盐酸的酸水摩尔比（0.28）。红外光谱的研究结果表明超浓盐酸中部分氯化氢未发生电离，而是以分子形式存在。同时 HCl参与了体系内氢键网络的形成。超浓盐酸体系提供了一个特殊的物理化学环境，使得溶于其中的铜离子呈红棕色。采用FTIR及UV‐Vis对含铜离子的超浓酸体系进行了表征。结果表明，超浓酸中，铜离子的 d— d跃迁和电荷迁移跃迁谱带都发生了明显的变化。铜离子的加入对超浓盐酸体系中未电离的HCl分子的氢键体系产生明显影响。
利用燐痠三丁酯形成的反膠束在常溫常壓下製備齣一種超濃鹽痠，其痠水摩爾比（nHCl／nH2 O ）在0.50～1.50之間，高于常溫常壓下飽和濃鹽痠的痠水摩爾比（0.28）。紅外光譜的研究結果錶明超濃鹽痠中部分氯化氫未髮生電離，而是以分子形式存在。同時 HCl參與瞭體繫內氫鍵網絡的形成。超濃鹽痠體繫提供瞭一箇特殊的物理化學環境，使得溶于其中的銅離子呈紅棕色。採用FTIR及UV‐Vis對含銅離子的超濃痠體繫進行瞭錶徵。結果錶明，超濃痠中，銅離子的 d— d躍遷和電荷遷移躍遷譜帶都髮生瞭明顯的變化。銅離子的加入對超濃鹽痠體繫中未電離的HCl分子的氫鍵體繫產生明顯影響。
이용린산삼정지형성적반효속재상온상압하제비출일충초농염산，기산수마이비（nHCl／nH2 O ）재0.50～1.50지간，고우상온상압하포화농염산적산수마이비（0.28）。홍외광보적연구결과표명초농염산중부분록화경미발생전리，이시이분자형식존재。동시 HCl삼여료체계내경건망락적형성。초농염산체계제공료일개특수적물이화학배경，사득용우기중적동리자정홍종색。채용FTIR급UV‐Vis대함동리자적초농산체계진행료표정。결과표명，초농산중，동리자적 d— d약천화전하천이약천보대도발생료명현적변화。동리자적가입대초농염산체계중미전리적HCl분자적경건체계산생명현영향。
We reported a new super‐concentrated hydrochloric acid system prepared by using tri‐n‐butyl phosphate (TBP)‐con‐structed reversed micelles at ambient temperature and pressure .According to the titration result ,the molar ratio of H + to H2 O (denoted as nH + /nH2O ) in the super‐concentrated HCl range from 0.50 to 1.50 which are higher than that in saturated aqueous HCl bulk solution (0.28) .Significant a moment of hydrochloric acid is confined in W/O reversed micelles .Therefore ,the be‐havior and status of HCl are different from those of conventional bluk solution .FTIR spectroscopic results demonstrate that a significant amount of HCl remains in the molecular form rather than being ionized into H + and Cl- .Thus ,super‐concentrated HCl provides an extraordinary chemical environment which may have significant influence on certain substances .We found that the color of the solution is reddish brown when copper ion is dissolved in super‐concentrated HCl ,while the color of the saturat‐ed HCl aqueous solution (37 Wt% ) containing copper ion is green .That is to say ,the copper ions exist in a special state under the unique chemical environment of super‐concentrated HCl .UV‐Vis‐NIR spectra indicate that both d‐d transition band and charge transfer transition band of copper ions in super‐concentrated HCl solution underwent significant variations .In addition , copper ions also have obvious influence on the hydrogen bond network among HCl in the super‐concentrated HCl solution .Re‐markable variation is introduced in the H —Cl stretching band in FTIR spectra .
