and W(CO)(4)(PPh(3))(THF). The absolute stereochemistry of the phosphiranes 3, 4, and 5 was determined by X-ray crystal structure analysis of compounds 22, 23, and 24. Stereochemicaleffects on NMR coupling constants and massspectra of the phosphiranes are discussed.
The EPR Spectrum of Triplet Mesitylphosphinidene: Reassignment and New Assignment
作者:Alexander V. Akimov、Yulia S. Ganushevich、Denis V. Korchagin、Vasili A. Miluykov、Eugenii Y. Misochko
DOI:10.1002/anie.201703629
日期:2017.6.26
conditions leads to the formation of the triplet mesitylphosphinidene (MesP). The recorded X‐band EPR spectrum of triplet MesP and the derived zero‐fieldsplitting parameter D=4.116 cm−1 differ significantly from those reported previously for this intermediate. New magnetic parameters of mesitylphosphinidene are discussed along with the results of DFT calculations.
在高度厌氧的条件下低温对异丁基膦进行紫外光解会导致三重异丁基膦(MesP)的形成。三重态MesP的X波段EPR光谱记录和导出的零场分裂参数D = 4.116 cm -1与之前针对该中间体报道的那些显着不同。讨论了间苯二甲叉基亚膦的新的磁性参数以及DFT计算的结果。
SULFONIC-ESTER-CONTAINING COMPOSITION FOR FORMATION OF ANTIREFLECTION FILM FOR LITHOGRAPHY
申请人:Nissan Chemical Industries, Ltd.
公开号:EP1813987A1
公开(公告)日:2007-08-01
There is provided an anti-reflective coating forming composition for lithography comprising a polymer compound, a crosslinking compound, a crosslinking catalyst, a sulfonate compound and a solvent. The anti-reflective coating obtained from the composition has a high preventive effect for reflected light, causes no intermixing with photoresists, has a higher dry etching rate compared with photoresists, can form a photoresist pattern having no footing at the lower part, and can use in lithography process by use of a light such as ArF excimer laser beam and F2 excimer laser beam, etc.
Stereochemical consequences of halogen atom substitution. 1. Rotational conformer effects in gaseous diastereomeric 2,3-dihalobutanes
作者:Ram B. Sharma、Richard A. Ferrieri、Richard J. Meyer、Edward P. Rack、Alfred P. Wolf
DOI:10.1021/j100369a023
日期:1990.3
Sulfonate-Containing Anti-Reflective Coating Forming Composition for Lithography
申请人:Kishioka Takahiro
公开号:US20080003524A1
公开(公告)日:2008-01-03
There is provided an anti-reflective coating forming composition for lithography comprising a polymer compound, a crosslinking compound, a crosslinking catalyst, a sulfonate compound and a solvent. The anti-reflective coating obtained from the composition has a high preventive effect for reflected light causes no intermixing with photoresists, has a higher dry etching rate compared with photoresists, can form a photoresist pattern having no footing at the lower part, and can use in lithography process by use of a light such as ArF excimer laser beam and F2 excimer laser beam, etc.