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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
972.
973.
Sheng‐wen Lu Ai‐hua Zhang Hui Sun Guang‐li Yan Ying Han Xiu‐hong Wu Xi‐jun Wang 《Biomedical chromatography : BMC》2013,27(12):1657-1663
974.
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976.
Bin Su Yang Wang Bo Feng Yongsheng Yan Enwei Zhu Bo Wang Guangbo Che 《Chinese Journal of Physics (Taipei)》2017,55(2):350-354
Organic ultraviolet photodetectors (OUV-PDs) were fabricated utilizing 2-TNATA as an electron donor with Bphen and TPBi as electron acceptors. A high sensitivity of OUV-PDs to UV light was obtained in the range of 300–420 nm. The optimized OUV-PDs composed of Bphen as the acceptor offered a photocurrent density up to 336 µA/cm2 at ?8 V with 365 nm UV light at a power of 1.2 mW/cm2. The high response is attributed to the excellent electron transport ability of Bphen and the matched energy level between 2-TNATA and Bphen. 相似文献
977.
Da Yan He Zhan Jiang Li Zhong Jun Li Yun Qi Liu Dong Xu Qiu Meng Shen Cai 《合成通讯》2013,43(18):2653-2658
Cabohydrates reacting with acetone in the presence of molecular sieve and p—toluene sulfonic acid provided a simple, convenient, high yield and good selective process for preparation of isopropylidene carbohydrates. 相似文献
978.
Yi Song Jiang-Li Ni Zhang-Yin Wang Yan Lu Lian-Fang Han 《International Journal of Theoretical Physics》2017,56(10):3175-3187
We present a new scheme for deterministically realizing the mutual interchange of quantum information between two distant parties via selected quantum states as the shared entangled resource. We first show the symmetric bidirectional remote state preparation (BRSP), where two single-qubit quantum states will be simultaneously exchanged in a deterministic manner provided that each of the users performs single-qubit von Neumann measurements with proper measurement bases as well as appropriate unitary operations, depending essentially on the outcomes of the prior measurements. Then we consider to extend the symmetric protocol to an asymmetric case, in which BRSP of a general single-qubit state and an arbitrary two-qubit state is investigated successfully. The necessary quantum operations and the employed quantum resources are feasible according to the present technology, resulting in that this protocol may be realizable in the realm of current physical experiment. 相似文献
979.
Construction of Hybrid Bimetallic Uranyl Compounds Based on a Preassembled Terpyridine Metalloligand
Xianghe Kong Dr. Kongqiu Hu Dr. Lei Mei Dr. Qunyan Wu Zhiwei Huang Kang Liu Prof. Zhifang Chai Prof. Changming Nie Prof. Weiqun Shi 《Chemistry (Weinheim an der Bergstrasse, Germany)》2021,27(6):2124-2130
Six hybrid uranyl–transition metal compounds [UO2Ni(cptpy)2(HCOO)2(DMF)(H2O)] ( 1 ), [UO2Ni(cptpy)2(BTPA)2] ( 2 ), [UO2Fe(cptpy)2(HCOO)2(DMF)(H2O)] ( 3 ), [UO2Fe(cptpy)2(BTPA)2] ( 4 ), [UO2Co(cptpy)2(HCOO)2(DMF)(H2O)] ( 5 ), and [UO2Co(cptpy)2(BTPA)2] ( 6 ), based on bifunctional ligand 4′-(4-carboxyphenyl)-2,2′:6′,2′′-terpyridine (Hcptpy) are reported (H2BTPA = 4,4′-biphenyldicarboxylic acid). Single-crystal XRD revealed that all six compounds feature similar metalloligands, which consist of two cptpy− anions and one transition metal cation. The metalloligand M(cptpy)2 can be considered to be an extended linear dicarboxylic ligand with length of 22.12 Å. Compounds 1 , 3 , and 5 are isomers, and all of them feature 1D chain structures. The adjacent 1D chains are connected together by hydrogen bonds and π–π interactions to form a 3D porous structure, which is filled with solvent molecules and can be exchanged with I2. Compounds 2 , 4 , and 6 are also isomers, and all of them feature 2D honeycomb (6,3) networks with hexagonal units of dimensions 41.91×26.89 Å, which are the largest among uranyl compounds with honeycomb networks. The large aperture allows two sets of equivalent networks to be entangled together to result in a 2D+2D→3D polycatenated framework. Remarkably, these uranyl compounds exhibit high catalytic activity for cycloaddition of carbon dioxide. Moreover, the geometric and electronic structures of compounds 1 and 2 are systematically discussed on the basis of DFT calculations. 相似文献
980.