Tailor-Made Dynamic Fluorophores: Precise Structures Controlling the Photophysical Properties [0.03%]
定制型动态荧光团：精确结构控制光物理性质
Shuhai Qiu,Zhiyun Zhang,Zhaohui Wang et al.
Shuhai Qiu et al.
Organic fluorophores with dynamic conformations in the excited state have played a significant role in applications of organic functional dyes. Among them, dihydrophenazine-based dynamic fluorophores involving a photoinduced structural plan...
(AuAg)44(SPh t Bu)26 versus (AuAg)44(SPhF2)30: Tailoring the Geometric Structures and Optical Properties of Nanocluster Analogues [0.03%]
（ AuAg ） 44 （ SPh t Bu ） 26 对比 （ AuAg ） 44 （ SPhF 2 ） 30 ： 类质同晶纳米簇的几何结构和光学性质调控
Jiaojiao Han,Hao Li,Honglei Shen et al.
Jiaojiao Han et al.
Monolayer-protected nanoclusters are ideal models for understanding the correlations between structures and properties of inorganic nanoparticles, especially for those molecules with identical sizes but comparable structures. Here, we contr...
An Unusual Acceleration of Amination Reactivity by the Proximal Ester Groups in Catechol Diesters: An Efficient Way for Peptide Synthesis [0.03%]
间位酯基对苯二酸酯胺化反应活性的异常加速效应及串联反应肽类合成中的应用研究
An Wu,Hirotaka Ikeda,Hisashi Yamamoto
An Wu
Peptide bond formation has drawn more and more attention due to its importance in medicinal chemistry and drug discovery. Using active esters to construct peptide bonds is an indispensable strategy in this field. We herein report a fast and...
Controlled Vertical Transfer of Individual Au Atoms Using a Surface Supported Carbon Radical for Atomically Precise Manufacturing [0.03%]
利用表面支持的碳自由基控制单个金原子的垂直转移实现原子级精密制造
Pallavi Bothra,Adam Z Stieg,James K Gimzewski et al.
Pallavi Bothra et al.
To explore a proof-of-concept for atomically precise manufacturing (APM) using scanning probe microscopy (SPM), first principle theoretical calculations of atom-by-atom transfer from the apex of an SPM tip to an individual radical on a surf...
Yiqun Zhang,Daiyue Yang,Sai Ho Pun et al.
Yiqun Zhang et al.
Two molecular nanocarbons result from merging a negatively curved nanographene and a carbon nanoring in two constitutional isomers of D 2 and C 2v symmetry, respectively. They were synthesized by attachment of C-shaped paraphenylene precurs...
Combining the Curvature and Ligand Effects for Regioselective Growth on Au Nano-bipyramids [0.03%]
结合曲率和配体效应在金纳米双锥的选择性生长中的应用
Tingting Jiang,Jianpeng Zong,Yuhua Feng et al.
Tingting Jiang et al.
We demonstrate the regioselective growth of Au on Au nano-bipyramids, either with etching of the tips, uniform coating except the tips, or forming a single island on the axial tip or an island on the equatorial corner. Importantly, the regi...
Chlorine Atom Transfer of Unactivated Alkyl Chlorides Enabled by Zirconocene and Photoredox Catalysis [0.03%]
锆催化剂和光氧化还原催化活化烷基氯代物实现氯原子转移反应
Toshimasa Okita,Kazuhiro Aida,Keisuke Tanaka et al.
Toshimasa Okita et al.
Alkyl chlorides are robust precursors to carbon radicals; however, their relative inertness has hampered their practical use. Although modern photochemical strategies have greatly enhanced the utility of alkyl chlorides as radical precursor...
Synergistic and Antisynergistic Intracrystalline Diffusional Influences on Mixture Separations in Fixed-Bed Adsorbers [0.03%]
固定床吸附剂中混合物分离对同系和反同系晶体扩散影响的协同作用
Rajamani Krishna
Rajamani Krishna
Separations of mixtures in fixed-bed adsorbers are influenced by factors such as (1) selectivity of adsorption, S ads, (2) diffusional time constants, Đ i /r c 2, and (3) diffusion selectivity, Đ 1/Đ 2. In synergistic separations, intrac...
Precise Orientational Control of Electroactive Units Using a Tripodal Triptycene Scaffold to Direct Noncovalent Pairing at the Single Molecular Level [0.03%]
利用三足冠轮烷支架在单分子水平上精确控制电活性单元的取向并实现非共价配对
Colin J Martin,Tomoya Fukui,Ryosuke Takehara et al.
Colin J Martin et al.
A break junction technique has been established to explore conductive behavior at the single molecular level, and recent interest has shifted toward the evaluation of bimolecular systems interacting through noncovalent intermolecular forces...