4—羧基杂氮硅三环中羧基红外光谱的研究

１－甲基及１－乙烯基－４－羧基杂氮硅三环在１６４５～１６３５ｃｍ＾－１均有与４－羧基相联系的弱吸收。对１－氯烷基取代物在上述范围的红外光谱研究表明，此吸收应归属于氢键存在下羧基上Ｃ＝Ｏ的伸缩振动，这种氢键形成于４－羧基与另一杂氮硅三环的桥氧之间，给杂氮硅三环化合物的质子化机理提供了直接证据。     

典型杂氮硅三环分子构象特性及^29Si磁屏蔽张量从头计算

采用模拟退火方法获得了１－甲基及１－乙烯基取代的杂氮硅三环类化合物存在的几种分子构象，并采用ａｂｉｎｉｔｉｏＧＩＡＯ－ＣＨＦ方法对Ｆ和ＣＨ３基团取代的模型化合物结构进行了＾２９Ｓｉ磁屏 蔽张量从头计算研究。     

银—2—羧基—4—溴苯基重氮氨基偶氮苯—TritonX—100—SDS显色体系的研究及应用

新三氮烯类试剂之一，２－羧基－４－溴苯基重氮氨基偶氮苯，在ｐＨ１１．０的Ｎａ２Ｂ４Ｏ７－ＮａＯＨ缓冲介质中，有非离子表面活性剂ＴｒｉｔｏｎＸ－１００及阴离子表成活性剂ＳＤＳ的共同存在下，可与Ａｇ（Ｉ）生成稳定性的２：１红色配合物，红色配合物的λｍａｘ＝５４０ｎｍ表观摩尔吸光系数ε＝５４０＝１．１０×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，Ａｇ量在０－１０μｇ／２０ｍＬ符合比尔定律，方法用于工业废水中     

5—（2—羧基苯基）—10,15,20—三苯基卟啉—氨基酸酯之间的氢？…

本文分析了５－（２－羧基苯基）－１０－,１５,２０－三苯基卟啉（ｏ－ＴＰＰＣＯ２Ｈ）和苯丙氨酸乙酯的紫外－可见光谱（ＵＶ－Ｖｉｓ）滴定曲线以及＾１Ｈ－ＮＭＲ数据,证实了ｏ－ＴＰＰＣＯ２Ｈ中的吡咯氮上的氢和氨基酸酯的羰基氧之间形成的氢键。     

5-(2-羧基苯基)-10,15,20-三苯基卟啉-氨基酸酯之间的氢键-UV-Vis和~1H-NMR研究

本文通过分析５－（２－羧基苯基）－１０,１５,２０－三苯基卟啉（ｏ－ＴＰＰＣＯ２Ｈ）和苯丙氨酸乙酯的紫外－可见光谱（ＵＶ－Ｖｉｓ）滴定曲线以及１ Ｈ－ＮＭＲ数据, 证实了ｏ－ＴＰＰＣＯ２Ｈ 中的吡咯氮上的氢和氨基酸酯的羰基氧之间形成的氢键     

银－2－羧基－4－溴苯基重氮氨基偶氮苯－Triton X－100－SDS显色体系的研究及应用

新三氮烯类试剂之一，２－羧基－４－溴苯基重氮氨基偶氮苯，在ｐＨ１１．０的Ｎａ_２Ｂ_４Ｏ_７－ＮａＯＨ缓冲介质中，有非离子表面活性剂ＴｒｉｔｏｎＸ－１００及阴离子表面活性剂ＳＤＳ的共同存在下，可与Ａｇ（Ⅰ）生成稳定的２∶１红色配合物，红色配合物的λ_（ｍａｘ）＝５４０ｎｍ，表观摩尔吸光系数ε_（５４０）＝１．１０×１０￣５Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１）。Ａｇ量在０－１０μｇ／２５ｍＬ符合比尔定律。方法用于工业废水中痕量Ａｇ的测定，结果满意。     

γ－乙二胺基丙基杂氮硅三环与氯化铜、氯化钴配合物的红外光谱研究

用γ－乙二胺基丙基杂氮硅三环分别与氯化铜、氯化钴反应制备了两种固体配合物。根据元素分析和原子吸收光谱结果确定了配合物的组成，并对配合物的红外光谱进行了归属和分析。     

γ—乙二胺基丙基杂氮硅三环与氯化铜,氯化钴配合物的红外光谱…

用γ－乙二胺基丙基杂氮硅三环分别与氯化铜，氯化钴反应制务了两种固体配合物。根据元素分析和原子吸收光谱结果确定了配合物的组成，并对配合物的红外光谱进行了归属和分析。     

溶剂萃取原子吸收光谱法测定建材样品中微量铁

本文研究了在微酸性介质中用抗坏血酸还原Ｆｅ（Ⅲ），Ｆｅ（Ⅱ）与１，１０－二氮杂菲（ｐｈｅｎ）形成Ｆｅ（ｐｈｅｎ）＾２＋３配合物，加入ＣｌＯ＾－４阴离子与之形成离子缔合物，再用有机溶剂硝基苯萃取，火焰原子吸收测定有机相。本法检出限为１．１ｎｇ／ｍＬ，回收率为９８．５％－１０６％。     

羧基丁苯胶乳中结合苯乙烯含量的红外光谱测定法

本文介绍了用红外光谱法测定羧基丁苯胶乳中结合苯乙烯含量的方法，通过该方法分别选择１４９５ｃｍ~（－１）作为苯乙烯的芳烃Ｃ＝Ｃ伸缩振动特征吸收带和９７０ｃｍ~（－１）作为丁二烯的反式Ｃ＝Ｃ非平面摇摆振动特征吸收带。结果求得直线回归方程，相关系数，相对标准偏差，精度范围等。本方法简单、快速、选择生强，已成功地应用于羧基丁苯胶乳中结合苯乙烯含量的测定。     

Infrared facility at the Canadian light source

The Canadian Light Source (CLS) is constructing two beamlines for Infrared Spectroscopy using synchrotron radiation (IRSR). One will supply mid-Infrared (2–25 μ) light to a Fourier Transform Infrared (FTIR) spectrometer and microscope for biological applications. The second will have a high resolution FTIR spectrometer for gas-phase and surface spectroscopy in the far-Infrared (beyond 25 μ). The Infrared beamlines will use dipole bending magnet radiation from a special bend magnet port design which provides a 50 mrad square acceptance. Issues with the first mirror and photon mask design, as well as the beamline layout and features are discussed.     

Dynamic infrared scene projection: a review

Since the early 1990s, there has been major progress in the developing field of dynamic infrared scene projection, driven principally by the need for hardware-in-the-loop simulation of the oncoming generation of imaging infrared missile seekers and more recently by the needs for realistic simulation of the new generation of thermal imagers and forward-looking infrared systems. In this paper the current status of the dynamic infrared projection field is reviewed, commencing with an outline of its history. The requirements for dynamic infrared scene projection are examined, allowing a set of validity criteria to be developed. Each class of infrared projector that has been investigated—emissive, transmissive, reflective, laser scanner and phosphor—together with the specific technology initiatives within the class is described and examined against the validity criteria. In this way the leading dynamic infrared scene projection technologies are identified.     

Characterization of solid state array cameras for the mid-IR

We present a characterization of some processes affecting the performance of solid state array cameras designed for ground based astronomical imaging in the 8–13m atmospheric window. Our discussion includes a novel model for electron-hole generationrecombination noise based on the probable pathlength of an electron in a photoconductor. We use the Berkeley mid-IR Array Camera as an example. For this camera, the results show that the total optical system composed of the camera, a 3m telescope, and the atmosphere has an efficiency of about 3%, a 1 noise equivalent flux density of 25 mJy min^–1/2arcsec^–2 measured over a /=10% band width, and a noise equivalent expressed as the ambient temperature thermal black body noise of 23%.     

基于非均匀B样条曲线的红外数据的精确拟合及校正

红外谱图数据的精确拟合是建立标准谱图的重要组成部分,是光谱仪器正确进行定性和定量分析的基础。文章采用非均匀B样条对红外谱图数据进行曲线拟合,通过采用基于最大范数距离的B样条拟合算法,不仅解决了大容量红外谱图的精确拟合问题,同时对谱图峰值精确定位也提供了方便。文章介绍了非均匀B样条曲线,以及二阶(三阶)非均匀B样条曲线拟合的实现,重点描述了红外谱图数据拟合精度的控制方法。     

Vibrational Spectra of Ethylenediamine Salts. I. Tentative Assignments of Infrared and Far Infrared Spectra

Abstract

We wish to report on some hitherto partly unnoticed and unexplained features in the infrared spectra of hydrogen halides of ethylenediamine. We have prepared normal, C-, N-, and perdeuterated ethylenediammonium chlorides and bromides and measured their infrared spectra in the range 4000–10 cm^?1.     

Study on Infrared Spectral Radiance by Remote Fourier Transform Infrared Spectroscopy

Abstract

Infrared emission spectra emitted by high luminosity infrared pyrotechnics have been observed remotely using the Fourier transform infrared spectroscopy. The primary purpose of the study is to determine infrared spectral radiance distribution, their time—resolved spectra and integrated emission energy. The spectra have been recorded between 4000 – 800cm^?1 region with spectral resolution of 4cm^?1. The study is very important for many applications.     

Raman Spectra of Porphyrins

The spectroscopy of porphyrins has been developing rapidly during the last two decades, this class of compounds being of great biological importance and possessing a number of significant properties. Different spectroscopic techniques, viz., electronic spectroscopy including fine-structure quasiline spectra (Shpolsky effect), infrared spectroscopy, luminescence, flash photolysis, ESR and NMR spectroscopy etc., have been applied to the study of these molecules (see reference ¹ for a review). However until recently there were no publications on Raman spectra of porphyrins and related compounds although it is evident that a complete analysis of molecular vibrations is impossible without knowing the Raman frequencies, especially for centrosymmetrical molecules. We have obtained Raman spectra of two porphin derivatives, viz., copper and nickel octamethylporphin ² which seems to be, together with data on hemoglobin and cytochrome^3-5 and on chlorophylls ⁶, the first observation of Raman spectra of porphyrins. In this paper Raman spectra of several metalloporphyrins are presented including metal complexes of porphin, octamethylporphin, etioporphyrin I, meso-tetraphenylporphin and tetrabenzporphin. For some of them Shpolsky spectra have been obtained and a juxtaposition is made of the two kinds of spectral data concerning the frequencies of molecular no- modss. Also some data of infrared spectra are presented.     

IR signature estimation of an object or a target by taking into account atmospheric effects

In this study, a reference infrared (IR) image of an object or a target was analyzed, and the IR signature was calculated. Background and atmospheric effects were decomposed so that the calculation errors were minimized. Depending on the reference IR image, the IR signature at any distance and any angle was estimated while considering atmospheric effects. Calculated results were obtained from IR images taken from the same distance and angle, and were compared with the estimated results. The comparison of the measured and calculated signatures demonstrated the accuracy of the proposed method of estimation.     

Design of midwave infrared athermalization optical system with a large focal plane array

Based on the most advanced staring focal plane array which had a format of 640 × 480 and the pixel pitch of 15 μm, a set of all-sphere midwave infrared ahermalization optical system was designed. The working wavelength was in 3–5 μm, the full field of view was 8.58°, the relative aperture was 1/2, the efficient focal length (EFL) was 80 m. The opticalsystem consisted of four lenses with three kinds of material – Ge, ZnSe and Si. All surfaces were sphere, which was easier to process test, making the cost inexpensive, and it could avoid using diffractive surface and aspheric surface. The image quality of the system approaches the diffraction limit in the temperature range −60 °C-180 °C. The design results proved that, the high resolution midwave infrared optical system had compact structure, small volume, high resolution and excellent image quality, meeting the design requirements, so that it could be used for photoelectric detection and tracking system.     

Far IR harmonic oscillators in triglycine sulphate at 7 K

Transmission spectra of very thick TGS single crystals (e.g. thickness 8 mm) observed in the Far IR at 7 K do not need a high spectral resolution and nevertheless give evidence of Lorentz oscillators with damping coefficients as small as those considered for water vapour at a pressure of 0.2 atmospheres.