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2005年05月19日

【期刊论文】膨润土毛织品匀染剂的研制及性能

苏海全, 王桂茹

内蒙古石油化工,24(22):93~95,-0001,():

-1年11月30日

摘要

本文以内蒙古兴和县膨润土为基本原料经提纯、改型及活化处理后与其它助剂复配研制出一种新型毛织品匀染剂在实验室条件下,测试了该匀染剂对5种不同类型染料的匀染效果。结果表明该匀染剂的适用范围广,适用性强上染百分率高成率仅为常用匀染剂的l/2,上染后毛织品的全部性能指标符合国家标准

膨润土, 匀染剂, 毛织品

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2005年05月19日

【期刊论文】Resonance Raman and time-resolved resonance Raman spectra of the monomeric and dimeric complexes of ruthenium (II) with 2,3-bis(2-pyridyl)pyrazine(dpp)

苏海全, Haiquan Su and James R. Kincaid*

J. Raman Spectrosc. 2003; 34: 907-916 ,-0001,():

-1年11月30日

摘要

The electronic absorption, resonance Raman (RR) and time-resovled resonance Raman (TR3) spectra of the monomerc and dimeric complexes of ruthenium (II) with 2,3-bis(2-pyridyl) pyrazine(dpp) were measured, I.e. Ru(bpy)2 dpp2+ and Ru(bpy)2dpp Ru(bpy)24+, where bpy is 2,2'-bipyridine. In addition, in order to facilitate definitive assignments of the observed RR spectral parameters, the corresponding selectively labeled complexes employing perdeuterated bpy (d8BPY) were also prepared and studied.It is shown that using judiciously chosen excitation lines to acquire the RR spectra permits selective enhancement of vibrational featrres associated with specific molecular fragmengts of the complexes, facilitating structural characterization of ground states of each complex. In addition, the TR3 spectrum of the monomeric complex yields vibrational signatures of its 3MLCT state, which is consistent with polarization of electron density to wards the pyrazyl fragment; corresponding studies of the dimeric complex failed to provide conclusive evidence for modes attributable to an anion radical fragment, presumably owing to lack of effective enhancement with the excitation lines available. Copyright

resonance Raman, ruthenium(, II), complexex, 2,, 3-bis(, 2-pyridy1), pyrazine

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2005年05月19日

【期刊论文】resonance Raman Spectra and Photophysical Properties of Ruthenium Complexes with the 3,3'-Bipyridazine Ligand

苏海全, Joseph S. Gardner* and Dennis P. Strommen*, Witold S. Szulbinski, **Haiquan Su, and James R. Kincaid*

J. Phys. Chem. A 2003, 107, 351-357,-0001,():

-1年11月30日

摘要

This report documents the spectroscopic and photophysical properties of the complexes, Ru(bpdz)32+ and [Ru(bpy)2(bpdz)]2+, where bpdz=3,3'-bipyridazine and bpy=2,2'-bipyridine Specifically, the complexes were characterized by UV-visible, emission, resonance Raman(RR), and transient resonance Raman (TR3) spectroscopic data, as well as lifetime measurements. The RR spectrum of the Ru(bpdz)32+ complex documents the characteristic modes of the coordinated ligand, whereas the RR spectra of the heteroleptic complex, [Ru(bpy)2(bpdz)]2+, obtained at judiciously chosen excitation wavelengths, reveal aelective enhancement of eithe bpy modes or bpdz modes, depending upon the particular excitation wavelength, permitting difinitive assignment of the observed, electronic absorption bands and establishing the lowest energy electroic transition as having a Ru-to-bpdz charge-transfer character. The TR3 spectrum of the Ru(bpdz)32+ complex reveals the characteristic frequencies of the coordinated bpdz-* anion radical, as expected, whereas corresponding studies of the heteroleptic com plex, [Ru(bpy)2(bpdz)]2+, reveal thee characteristic bpdz-* modes in the absence of any modes attributable to bpy-* anion radicals, providing difinitive evidence for the [Ru(III)(bpy)2(bpdz-*)]2+ formulation of the excited state of this com plex, Lifetime measurements for both com plexes, made over a wide, range of temperatures and interpreted with a model derived from previous measurements made on a large number of similar complexes, indicate that the two complexes of interest decay by different nonradiative pathways resulting from thermal population of a ligand field3dd and/or a lower lying 4th 3 MLCT state.

resonance Raman, ruthenium(, II), complexex, Phothphysical Properties, 3,, 3', -bipyridazine

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2005年05月19日

【期刊论文】Study of Color Centers and Trace Oxygen in KMgF3: Eu Single Crystal

苏海全, Haiquan Su, Zhihong Jian, and Chunshan Shi*

Chem. Mater. 2002, 14, 310-312,-0001,():

-1年11月30日

摘要

Ustng the Bridgeman-Stockbarger method, the KMgF3: Eu2+ single crystal was growen. The color centers in umirradiated KMgF3: Eu crystal were studied. By thermal annealing, we confirmed the 422-nm emission resulted from color centers and oxygen centers, and we proved the energy transfer from Eu2+ to color centers. From spectra, the relative oxygen content in crystal was calculated, and the relationships of oxygen displacing fluorine were studied.

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2005年05月19日

【期刊论文】6P7/2-Excited-State Decay Mechanism and Energy-Transfer Processes in KMgF3: Eu2+ and KMgF3: Eu-X(X=Gd, Ce, Cr)

苏海全, Haiquan Su, Zhihong Jia, and Chunshan Shi*, Ju Xin and S. A. Reid

Chem. Mater. 2001, 13, 3969-3974,-0001,():

-1年11月30日

摘要

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    内蒙古大学,内蒙古

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