Spectrochimica acta. Part A: Molecular spectroscopy最新文献_第3页

Infrared spectra of nitrostyrene derivatives 硝基苯乙烯衍生物的红外光谱

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(94)80105-3

R.E. Clavijo, R. Araya-Maturana, B.K. Cassels, B. Weiss-López

引用次数: 5

Nonlinearity properties of certain rare-earths mixed laser dyes from their refractive indices measurements 某些稀土混合激光染料的非线性特性及其折射率测量

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(94)E0005-U

K. Annapurna, S. Buddhudu

引用次数: 0

Infrared and Raman spectra of solutions of some alkaline earth metal perchlorates in propylene carbonate 一些碱土金属高氯酸盐在碳酸丙烯酯中的溶液的红外和拉曼光谱

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(94)E0010-8

P.K. Muhuri, D.K. Hazra, B. Das

引用次数: 0

Molecular structure of some Schift base complexes 一些裂谷碱配合物的分子结构

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(93)E0018-R

B. Singh, A.K. Srivastav

引用次数: 0

Observation of photodissociation of S2Cl2 and resonance Raman and fluorescence spectra of S2Cl under 514.5 nm radiation 514.5 nm辐射下S2Cl2的光解和共振拉曼光谱及荧光光谱的观察

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(93)E0025-R

Chi-Lian Chiu, Hua Chang

引用次数: 6

Semi-empirical and vibrational studies of flavone and some deuterated analogues 黄酮和一些氘化类似物的半经验和振动研究

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(93)E0033-S

L. Vrielynck, J.P. Cornard, J.C. Merlin, M.F. Lautie

引用次数: 35

Subtraction of atmospheric water contribution in Fourier transform infrared spectroscopy of biological membranes and proteins 生物膜和蛋白质的傅里叶变换红外光谱中大气水贡献的减法

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(94)00167-7

Goormaghtigh Erik, Ruysschaert Jean-Marie

{"title":"Subtraction of atmospheric water contribution in Fourier transform infrared spectroscopy of biological membranes and proteins","authors":"Goormaghtigh Erik, Ruysschaert Jean-Marie","doi":"10.1016/0584-8539(94)00167-7","DOIUrl":"10.1016/0584-8539(94)00167-7","url":null,"abstract":"<div>The contribution of the absorption of H2O vapor in the IR spectrum of proteins Interferes with the analysis of the shape of amide I and II bands and prevents correct assignments to be performed, in particular after Fourier self-deconvolution of the spectra Mathematical treatments of the spectra have previously been proposed to subtract the water vapor contribution from the sample spectrum. Here we propose to take advantage of the intrinsic bandwidth difference existing between the absorption bands of the water vapor and these of the liquid or solid sample. When a nominal resolution of 8 or 4 cm−1 is chosen, atmospheric water bands are broad and rather featureless. The subtraction coefficient applied may vary by about 50% according to the operator. Conversely, when the spectrum of the same sample in the same conditions is recorded with a nominal resolution of 0.5 cm−1, subtraction coefficients are exactly evaluated by integration and the visual evaluation can not be mistaken by more than 5%. The very sharp features arising from imperfect matching between the atmospheric water band shapes in the reference and in the sample spectrum completely disappear if the difference spectrum is now convoluted to a final resolution of 4 cm−1. Incidence of the subtractions obtained at different resolutions on the evaluation of protein secondary structure is evaluated.</div>","PeriodicalId":82782,"journal":{"name":"Spectrochimica acta. Part A: Molecular spectroscopy","volume":"50 12","pages":"Pages 2137-2144"},"PeriodicalIF":0.0,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0584-8539(94)00167-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86629888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 71

Sir Harold Thompson Memorial Award 1993 1993年哈罗德·汤普森爵士纪念奖

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(94)80104-5

引用次数: 0

Champ de force de valence du 3-Méthyl 4-nitro pyridine N-oxyde (POM) 3-甲基4-硝基吡啶n -氧化物(POM)价力场

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(93)E0016-P

F.Briffaut-Le Guiner, Nguyen Quy Dao, M. Jouan, P. Plaza

引用次数: 9

The pressure, temperature and excitation frequency dependent Raman spectra; and infrared spectra of CuBrSe3 and CuISe3 压力、温度和激发频率相关的拉曼光谱;CuBrSe3和CuISe3的红外光谱

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-11-01 DOI: 10.1016/0584-8539(94)00176-6

Jonathan D Sarfati, Gary R Burns

{"title":"The pressure, temperature and excitation frequency dependent Raman spectra; and infrared spectra of CuBrSe3 and CuISe3","authors":"Jonathan D Sarfati, Gary R Burns","doi":"10.1016/0584-8539(94)00176-6","DOIUrl":"10.1016/0584-8539(94)00176-6","url":null,"abstract":"<div>Raman and Infrared Spectra of CuBrSe3 and CuISe3 have been measured. The fundamentals were assigned by analogy to other adducts of Cu(I) halides and to the Se6 ring molecule. CuBrSe3 has two strong Raman bands at 247 and 272 cm−1.; CuISe3 has two strong bands at 243 and 264 cm−1. The strongest IR bands of CuBrSe3 and CuISe3 are at 78 and 74 cm−1 respectively.The wavenumbers of the CuX (X = Br or I) stretching modes agree well with the empirical correlation found between <math><mtext>ν</mtext></math>(CuX) and the CuX bond lengths in adducts of phosphine and amine bases, and are shown to be relatively independent of the nature of the coordinating ligands.The pressure dependences from 0 to 20 kbar and temperature dependences from 10–425 K of the Raman-active phonons were measured. In contrast to allotropes of Se, there was no anomalous behaviour of the A1-type stretching modes of the Se6 ring. This shows that the interference of intramolecular Se bonds by intermolecular Se bonds is much reduced by the rings' separation by the (CuBr)x chains or Cu2I2 rhombs.The coefficients (∂<math><mtext>ν</mtext></math>/∂p)T of the external modes are smaller relative to the internal modes than those of rhombohedral Se.The relative intensity of all the Raman bands increased monotonically with decreasing exciting frequency for the range of excitation lines used in this study.</div>","PeriodicalId":82782,"journal":{"name":"Spectrochimica acta. Part A: Molecular spectroscopy","volume":"50 12","pages":"Pages 2125-2136"},"PeriodicalIF":0.0,"publicationDate":"1994-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0584-8539(94)00176-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89979480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9