与双-(全氟乙基磺酰基)酰亚胺([(C 2 F 5 SO 2)2 N])和双-(三氟甲磺酰基)酰胺([(CF 3 SO 2)]偶联后,几种基于1-苯丙氨酸烷基酯的阳离子形成离子液体。2 N])。l结构之间的关系研究了苯丙氨酸烷基酯阳离子和全氟阴离子以及随后合成的手性离子液体的性质。离子液体以良好的产率获得,并且在室温下为液体。在合成的离子液体中,在阳离子单元上具有甲基和乙基取代基的离子液体表现出最高的热分解温度,范围为280°C至296°C。这些离子液体显示的最低玻璃化转变温度为-45°C至-51°C。在阳离子上引入不同的烷基取代基导致离子液体的熔点和粘度略有变化。基于[(C 2 F 5 SO 2)2的离子液体对于每个相应的阳离子,N]阴离子的熔点都高于基于[(CF 3 SO 2)2 N]阴离子的熔点。当在相同波长下激发时,纯手性离子液体显示出不同的荧光光谱行为。稳态荧光光谱测量显示1-苯
Near infrared ray absorbent composition, near infrared ray cut filter, solid image pickup element, and camera module
申请人:FUJIFILM Corporation
公开号:US10215898B2
公开(公告)日:2019-02-26
Provided are a near infrared ray absorbent composition which can form a cured film having excellent near infrared ray shielding properties, a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module. The near infrared ray absorbent composition includes a copper complex that is other than a copper phthalocyanine complex and has a maximum absorption wavelength in a wavelength range of 700 to 1,200 nm and in which a molar light absorption coefficient at the maximum absorption wavelength is greater than or equal to 100 (L/mol·cm).
Influence of chain length on mono- versus di-alkylation in the reactivity of [Pt2(μ-S)2(PPh3)4] towards α,ω-dihalo-n-alkanes; a synthetic route to platinum(II) ω-haloalkylthiolate complexes
作者:Sarah M. Devoy、William Henderson、Brian K. Nicholson、T.S. Andy Hor
DOI:10.1016/j.ica.2009.10.005
日期:2010.1
when excess alkylatingagent is used. The bridged complex [Pt2(μ-S)2(PPh3)4}2μ-(CH2)12}]2+ was accessible from the reaction of [Pt2(μ-S)2(PPh3)4] with 0.5 mol equivalents of Br(CH2)12Br. [Pt2(μ-S)μ-S(CH2)4Br}(PPh3)4]+ can be cleanly isolated as its BPh4− salt, but undergoes facile intramolecular di-alkylation at −18 °C, giving the known species [Pt2(μ-S(CH2)4S}(PPh3)4]2+. The reaction of I(CH2)6I
basis of the ion species. The spectral intensity in nonaromatic cation based ILs was much lower than that in aromatic cation based ILs owing to the absence of the aromatic ring, i.e., the libration of the aromatic species had a strong spectral intensity in the low-frequency region. However, nonaromatic cation based ILs with a flat anion, such as dicyanamide and tricyanomethide, showed stronger spectral
在此,报道了通过飞秒拉曼诱导的克尔效应光谱法测量的在293 K下的四十个非芳香族阳离子型离子液体(ILs)的分子间振动数据。通过傅立叶变换反卷积分析获得了0.3–700 cm -1频率范围内的低频频谱。低于〜200 cm -1的低频频谱的线形根据离子种类进行了讨论。由于不存在芳环,因此基于非芳族阳离子的ILs的光谱强度比基于芳族阳离子的ILs的光谱强度低得多,即芳族物质的释放在低频区域具有很强的光谱强度。但是,由于阴离子的释放,具有平面阴离子的非芳香族阳离子基离子分子(如双氰胺和三氰甲基甲烷)显示出更强的光谱强度。在离子物种结构的背景下,还讨论了其他独特的光谱特征。还估计了液体性质,例如密度,粘度,电导率和表面张力。在比较低频光谱和非芳香族阳离子基离子液体的整体液体性质时,
Hydrophobic ionic liquids incorporating N-alkylisoquinolinium cations and their utilization in liquid–liquid separations
作者:Ann E. Visser、John D. Holbrey、Robin D. Rogers
DOI:10.1039/b109340c
日期:2001.11.22
The first examples of Room Temperature Ionic Liquids (RTIL) containing fused polycyclic N-alkylisoquinolinium cations ([Cnisoq]+) in combination with the bis(perfluoroethylsulfonyl)imide anion ([BETI]â) have been synthesized, characterized, and utilized in liquidâliquid partitioning from water; these salts have unexpectedly low melting points and give high distribution ratios for aromatic solutes, especially chlorobenzenes, between the RTIL and water.