在本文中,我们报告了利用脉冲激光沉积技术在硅基底上生长氧化锌薄膜的情况。这些薄膜直接沉积在硅(111)上,也使用了氮化铝和氮化镓薄缓冲层。所有薄膜都具有与基底法线对齐的 c 轴优先取向。使用氮化铝和氮化镓缓冲层的薄膜具有优先面内取向的外延,而直接生长在硅(111)上的薄膜则具有随机面内取向。由于薄膜中存在拉伸应变,拉曼模式的频率降低,带边光致发光峰发生红移。讨论了观察到的双轴应变的各种可能来源。
The reaction mixture of glycylglycine with formaldehyde in an alkaline aqueous solution containing cupricion at 100°C gave seven ninhydrin positive components which were identified as follows; α-hydroxymethylserine, serine, glycine, 3-carboxymethyl-4-imidazolidone, α-hydroxymethylseryl-glycine, serylglycine and glycylglycine. The yield of serylglycine increased in proportion to the amount of cupric
Catalytic and Selective Conversion of Glycine into Serine by the Reaction with Formaldehyde in a Neutral Aqueous Solution
作者:Morio Yashiro
DOI:10.1246/bcsj.75.1383
日期:2002.6
Di- or trinuclear Cu(II) complexes efficiently catalyzed the condensation of glycine with formaldehyde to yield serine at pH 7.3, 50 °C.
二核或三核的Cu(II)配合物在pH 7.3,50°C下高效催化甘氨酸与甲醛缩合生成丝氨酸。
Studies on Serine Peptides. II Synthesis of Optically Active Serine Peptide Derivatives
作者:Kenzi Okawa
DOI:10.1246/bcsj.29.488
日期:1956.4
The derivatives of opticallyactive textscl-seryl peptides containing trifunctional amino acids have been synthesized by the Sheehan’s method in good yield. In this method, the free hydroxyl group of the serine must have been substituted by a suitable protecting group, fx. benzyl rest, in order to obtain good results.
含有三功能氨基酸的光学活性文本scl-丝氨酰肽的衍生物已通过Sheehan's方法以良好的产率合成。在该方法中,丝氨酸的游离羟基必须被合适的保护基 fx 取代。苄基休息,以获得良好的效果。