Conformation, and Charge Tunneling through Molecules in SAMs
作者:Lee Belding、Samuel E. Root、Yuan Li、Junwoo Park、Mostafa Baghbanzadeh、Edwin Rojas、Priscilla F. Pieters、Hyo Jae Yoon、George M. Whitesides
DOI:10.1021/jacs.0c12571
日期:2021.3.10
and influences the rates of tunneling. When R1 = R2, the rates of CT decrease (up to 6.3×), relative to rates of CT observed through SAMs having the same total chain lengths, or thicknesses, when R1 = H. When R1 ≠ H ≠ R2, there is a weaker correlation (relative to that when R1 = H or R1 = R2) between current density and chain length or monolayer thickness, and in some cases the rates of CT through SAMs
本文证明,构成自组装单层 (SAM) 的分子的分子构象(除了组成和结构外)影响通过它们的电荷隧穿 (CT) 速率,在形式为 Au TS / S( CH 2 ) 2 CONR 1 R 2 //Ga 2 O 3 /EGaIn,其中R 1和R 2是不同长度的烷基链。链的长度 R 1和 R 2选择影响单层中分子的构象和构象均匀性。分子的构象影响单层的厚度(即隧道势垒宽度)及其在±1.0 V 时的整流比。当R 1 = H 时,分子有序且主要以反式扩展构象存在。然而,当R 1是烷基(例如,R 1 ≠H)时,它们的构象不再是全反式延伸的,并且分子采用更多的斜切二面角。构象类型的这种变化降低了构象顺序并影响隧穿速率。当 R 1 = R 2,当 R 1 = H 时,相对于通过具有相同总链长或厚度的 SAM 观察到的 CT 速率,CT 速率降低(高达 6.3 倍)。当 R 1 ≠ H ≠ R 2 时,存在较弱
Versatile Approach To Encoding Combinatorial Organic Syntheses Using Chemically Robust Secondary Amine Tags
作者:Zhi-Jie Ni、Derek Maclean、Christopher P. Holmes、Martin M. Murphy、Beatrice Ruhland、Jeffrey W. Jacobs、Eric M. Gordon、Mark A. Gallop
DOI:10.1021/jm960043j
日期:1996.1.1
Encoded combinatorial organic synthesis has recently emerged as a powerful tool for the discovery of biologically active compounds from complex chemical libraries. This report describes a new encoding methodology that useschemically robust secondary amines as tags. These amines are incorporated into an N-[(dialkylcarbamoyl)methyl]glycine-coding oligomer through simple chemistry that is compatible
Process for forming a cyan dye image by the use of a 2-equivalent cyan
申请人:Konishiroku Photo Industry Co., Ltd.
公开号:US04205990A1
公开(公告)日:1980-06-03
A process for forming a cyan dye image by using a novel photographic 2-equivalent cyan coupler which is characterized by having a splitt-off group of the below-indicated general formula at the active position of the cyan coupler so that the oxy portion is present on the side of the active position: ##STR1## wherein R.sub.1 and R.sub.2 stand for a hydrogen atom or an organic group, provided at least one of R.sub.1 and R.sub.2 should be an organic group, is disclosed.
Compositions and methods useful in administering nucleic acid based therapies, for example association complexes such as liposomes and lipoplexes are described.
本文介绍了用于管理基于核酸的治疗的组合物和方法,例如关联复合物,如脂质体和脂质复合物。
Novel perfluoropolyether derivatives, and lubricants and magnetic recording medium using the same
申请人:SONY CORPORATION
公开号:EP0519406A2
公开(公告)日:1992-12-23
Novel perfluoropolyether derivatives are described which are obtained from perfluoropolyethers having a carboxyl group at one or both ends and monoamines or diamines. The derivative is useful as a lubricant owing to its significantly improved lubricity. The lubricity is shown under severe high or low temperature and humidity conditions over a long term. The derivative is especially useful as a lubricant for magnetic recording mediums of the coating and metal thin film types.