HELICENES

作品数：12被引量：10H指数：2
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相关期刊：《Science China Chemistry》《Chemical Research in Chinese Universities》《有机化学》《Precision Chemistry》更多>>
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Flag-hinge-like highly luminescent chiral nanographenes with twist geometry
《Chinese Chemical Letters》2024年第11期334-339,共6页Wenying Cui Zhetong Jin Wentao Fu Chengshuo Shen 
financially supported by the Zhejiang Provincial Natural Science Foundation,China(No.LY23B040003);the Science Foundation of Zhejiang Sci-Tech University,China(No.22062026-Y)。
Nanographenes(NGs)with twisted backbones are emerging as new candidates for chiroptical materials.In this work,we describe a new strategy for synthesizing a[10]twistacene-embedded NG which exhibits a rare flag-hinge-l...
关键词：NANOGRAPHENE Twistacene HELICENES CHIRALITY Circularly polarized luminescence 
Enantioselective Synthesis,(Chir)optical Properties,and Postsynthetic Functionalization of Furan-Containing Oxa[5]-,Oxa[6]-,and Dioxa[6]helicenes
《CCS Chemistry》2024年第10期2439-2451,共13页Wei Fu Valentina Pelliccioli Raquel Casares-López Juan M.Cuerva Martin Simon Christopher Golz Manuel Alcarazo 
the Deutsche Forschungsgemeinschaft(INST 186/1352-1 and INST 186/1237-1)is gratefully acknowledged.W.F;thanks the China Scholarship Council for PhD fellowship support.R.C.-L.gratefully acknowledges grant PID2021-127964NB-C22 funded by the MCIN/AEI/10.13039/501100011033.
An expedient synthesis of a series of configurationally stable oxa[5]helicenes,oxa[6]helicenes,and dioxa[6]helicenes has been developed using an intramolecular,highly enantioselective,Au-catalyzed,alkyne hydroarylatio...
关键词：Au-catalysis enantioselective synthesis oxa[n]helicenes racemization dynamics postsynthetic functionalization 
Triple Aza[6]helicenes with Circularly Polarized Luminescence:N-Alkylation as a Tool to Tune the Chiroptical Properties
《有机化学》2024年第9期2841-2846,共6页Xia Yufei Jiang Li Yang Qiao Yu Xiu Chen Fengkun 
国家自然科学基金(No.22171044)资助项目.
Recently,multiple helicenes have attracted enormous attention due to their exceptionally distorted conjugated architectures,appealing optical properties and unique spatial stacking patterns.The electronic and optical ...
关键词：HELICENE multiple heterohelicene chiral resolution circularly polarized luminescence ALKYLATION 
Quadruple[6]Helicene Featuring Pyrene Core:Unraveling Contorted Aromatic Core with Larger Effective Conjugation
《Precision Chemistry》2024年第9期488-494,共7页Christopher Wallerius Otgonbayar Erdene-Ochir Eva Van Doeselar Ronald Alle Anh Tu Nguyen Marvin F.Schumacher Arne Lützen Klaus Meerholz Sai Ho Pun 
supported by Deutsche Forschungsgemeinschaft(DFG)through RTG 2591“Template-Designed Organic Electronics”;the Manchot Foundation for a doctoral scholarship.
Multiple helicenes display distinct aromatic cores characterized by highly twisted rings that are shared or fused with constituent helicene moieties.Diversifying these aromatic cores unlocks avenues for creating multi...
关键词：HELICENES Polycyclic aromatics PYRENE Core contortion Effective conjugation 
Synthesis,Structures,and Chiroptical Properties of NBN-Doped Helicenes with Boron Atoms in the Inner Rims
《Precision Chemistry》2024年第1期28-39,共12页Weiwen Zhuang Yujian Liu Ziqi Deng Yu Guo Philip C.Y.Chow David Lee Phillips Wei Jiang Zhaohui Wang Junzhi Liu 
supported by the Hong Kong Research Grants Council(27301720,17304021);National Natural Science Foundation of China(22122114,22122503,21790361).
The precise synthesis of helicenes with topologically defined length and specific heteroatomic perturbation in the screw-like conjugated skeletons plays an emerging role in the manipulation of chiral materials.Facile,...
关键词：Nitrogen-boron HELICENES BORYLATION Chiroptical properties Narrow-band emission 
On-Surface Stereochemical Characterization of a Highly Curved Chiral Nanographene by Noncontact Atomic Force Microscopy and Scanning Tunneling Microscopy被引量：2
《CCS Chemistry》2023年第12期2888-2896,共9页Qigang Zhong Viktor Barat Daniel Csokas Kaifeng Niu Marcin Gorecki Animesh Ghosh Jonas Bjork Daniel Ebeling Lifeng Chi Andre Schirmeisen Mihaiela C.Stuparu 
Financial support from the Ministry of Education Singapore under the AcRF Tier 1(MOE T1 RG11/21)and AcRF Tier 2(MOE-T2EP10221-0002);The Deutsche Forschungsgemeinschaft via grants(nos.SCHI 619/13 and EB535/1-1);the GRK(Research Training Group)2204“Substitute Materials for Sustainable Energy Technologies”;the LOEWE Program of Excellence of the Federal State of Hesse(LOEWE Focus Group PriOSS“Principles of On-Surface Synthesis”);the National Natural Science Foundation of China(grant nos.21790053,51821002,and 22072103);the National Major State Basic Research Development Program of China(grant nos.2017YFA0205000 and 2017YFA0205002);the Collaborative Innovation Center of Suzhou Nano Science&Technology;the 111 Project are also acknowledged for their financial support.
A highly distorted chiral nanographene structure composed of triple corannulene-fused[5]helicenes is prepared with the help of the Heck reaction and oxidative photocyclization with an overall isolated yield of 28%.The...
关键词：chirality at surfaces noncontact atomic force microscopy scanning tunnelling microscopy submolecular resolution imaging single-bond resolution curved nanographenes multiple helicenes chiral nanostructures bowl-helix hybrids scanning probe microscopy 
Unraveling the amplified chiroptical responses of rylene-bladed quintuple[6]helicenes
《Science China Chemistry》2023年第8期2400-2407,共8页Yanan Wu Yujian Liu Wei Jiang Zhaohui Wang 
supported by the National Natural Science Foundation of China(22122503,22235005,and 22275112);the Shandong Provincial Natural Science Foundation(ZR2019ZD50)。
Unraveling the key structural features to maximize the chiroptical properties is of significance for developing high-performance chiral materials.Here we present our first attempt to elucidate and understand the molec...
关键词：chiral molecular carbon imides perylene diimides quintuple helicenes molecular symmetry chiroptical properties 
Simple Double Hetero[5]helicenes Realize Highly Efficient and Narrowband Circularly Polarized Organic Light-Emitting Diodes被引量：3
《CCS Chemistry》2022年第11期3463-3471,共9页Wei Yang Nengquan Li Jingsheng Miao Lisi Zhan Shaolong Gong Zhongyan Huang Chuluo Yang 
This work was supported by the National Natural Science Foundation of China(grant nos.52130308,51903160,and 52022071);Shenzhen Science and Technology Program(grant no.KQTD20170330110107046);the Shenzhen Technology and Innovation Commission(grant no.JCYJ20180507182244027).
Helicene-based emitters with unique inherent circularly polarized luminescence(CPL)are promising yet remain a formidable challenge for highly efficient circularly polarized organic light-emitting diodes(CP-OLEDs),ascr...
关键词：helical chirality multiple-resonance thermally activated delayed fluorescence circularly polarized organic light-emitting diodes double helicene 
A C2-symmetric triple [5]helicene based on N-annulated triperylene hexaimide for chiroptical electronics被引量：4
《Science China Chemistry》2020年第2期208-214,共7页Zetong Ma Thorsten Winands Ningning Liang Dong Meng Wei Jiang Nikos L.Doltsinis Zhaohui Wang 
supported by the National Natural Science Foundation of China(21790361,21734009);the National Key R&D Program of China(2017YFA0204701);the Youth Innovation Promotion Association of Chinese Academy of Sciences(2017048);DFG within TRR 61
Two diastereoisomers(NTPH-P and NTPH-T1) as a C2-symmetric triple [5]helicene based on N-annulated triperylene hexaimide were synthesized.Aided by nuclear magnetic resonance spectroscopy(NMR) and theoretical calculati...
关键词：triple helicenes perylene diimides N-annulation asymmetric decoration chiroptical properties organic solar cells 
Recent progress on multidimensional construction of helicenes被引量：2
《Chinese Chemical Letters》2018年第1期40-46,共7页Wei-Bin Lin Meng Li Lei Fang Chuan-Feng Chen 
the National Natural Science Foundation of China (Nos. 51373180, 21572233);the Strategic Priority Research Program of CAS(No. XDB12010400) for financial support
Helicenes have attracted more and more attention in the field of photoelectric materials and asymmetric catalysis for their unique Tr-conjugated screw-shaped structures and excellent chiroptical properties. However, f...
关键词：HeliceneMultidimensional construction^r-Conjugated systemsChiralityCatalyst 
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