1
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Clendening RA, Delancey SS, Poore AT, Xue S, Guo Y, Tian S, Ren T. Enabling Valence Delocalization in Iron(III) Macrocyclic Complexes through Ring Unsaturation. Inorg Chem 2023; 62:11121-11133. [PMID: 37390479 PMCID: PMC10688613 DOI: 10.1021/acs.inorgchem.3c01179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
The complexes [FeIII(HMC)(C2DMA)2]CF3SO3 ([2]OTf) and [FeIII(HMTI)(C2Y)2]CF3SO3 ([3a-c]OTf) have been prepared and thoroughly characterized (HMC = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane; HMTI = 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradeca-1,3,8,10-tetraene; Y = Fc (ferrocenyl, [3a]OTf), 4-(N,N-dimethyl)anilino (DMA, [3b]OTf), or 4-(N,N-bis(4-methoxyphenyl)anilino (TPA, [3c]OTf); OTf- = CF3SO3-)). Vibrational and electronic absorption spectroelectrochemical analyses following one-electron oxidation of the ethynyl substituent Y revealed evidence of strong coupling in the resultant mixed valent species for all HMTI-based complexes. However, the analogous mixed valent ion based on [2]OTf appeared to be more localized. Thus, the tetra-imino macrocycle HMTI has enabled significant valence delocalization along the -C2-FeIII-C2- bridge. Electron paramagnetic resonance and Mössbauer spectroscopic studies of [3b]OTf reveal that the π-acidity of HMTI lowers the energy of the FeIII dπ orbitals compared to the purely σ-donating HMC. This observation provides a basis for the interpretation of the macrocycle-dependent valence (de)localization.
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Affiliation(s)
- Reese A. Clendening
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Stephanie S. Delancey
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Andrew T. Poore
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shan Xue
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Yisong Guo
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Shiliang Tian
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Tong Ren
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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2
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Ozcelik A, Aranda D, Pereira-Cameselle R, Talavera M, Covelo B, Santoro F, Peña-Gallego Á, Alonso-Gómez JL. ON/OFF Spiroconjugation through Peripheral Functionalization: Impact on the Reactivity and Chiroptical Properties of Spirobifluorenes. Chempluschem 2022; 87:e202100554. [PMID: 35415974 DOI: 10.1002/cplu.202100554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/16/2022] [Indexed: 02/03/2023]
Abstract
Spirobifluorenes are an important class of spiro compounds frequently used in the field of organic electronics. However, harnessing spiroconjugation to obtain high-performance in such structural motifs remains unexplored. We herein propose that peripheral functionalization may serve as a useful tool to control spiroconjugation in an ON/OFF manner on both chemical reactivity and photophysical properties. In particular, the ratio of mono- and di-functionalized spirobifluorenes found experimentally during their synthesis were found to be 3/2, 7/2, and 12/2 for phenyl, nitro-phenyl and amino-phenyl analogues, respectively. These remarkable reactivity differences correlate with the spiroconjugation character evaluated theoretically at the CAM-B3LYP/6-31G(d,p) level of theory. Additionally, comparison of experimental and predicted optical and chiroptical responses shows that spiroconjugated molecular orbitals have a significant or negligible involvement on the main electronic transitions depending on the peripheral functionality of the spirobifluorene.
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Affiliation(s)
- Ani Ozcelik
- Departamento de Química Orgánica, Universidad de Vigo, Campus Universitario, 36310, Vigo, Spain
| | - Daniel Aranda
- Istituto di Chimica dei Composti Organometallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Pisa, Italy
| | | | - María Talavera
- Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Berta Covelo
- CACTI (Centro de Apoyo Científico-Tecnológico a la Investigación), Universidad de Vigo, Campus Universitario, 36310, Vigo, Spain
| | - Fabrizio Santoro
- Istituto di Chimica dei Composti Organometallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019, Sesto Fiorentino, Pisa, Italy
| | - Ángeles Peña-Gallego
- Departamento de Química Física, Universidad de Vigo, Campus Universitario, 36310, Vigo, Spain
| | - J Lorenzo Alonso-Gómez
- Departamento de Química Orgánica, Universidad de Vigo, Campus Universitario, 36310, Vigo, Spain
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Zalmi GA, Gawade VK, Nadimetla DN, Bhosale SV. Aggregation Induced Emissive Luminogens for Sensing of Toxic Elements. ChemistryOpen 2021; 10:681-696. [PMID: 34240566 PMCID: PMC8266767 DOI: 10.1002/open.202100082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/24/2021] [Indexed: 12/18/2022] Open
Abstract
The major findings in the growing field of aggregation induced emissive (AIE) active materials for the detection of environmental toxic pollutants have been summarized and discussed in this Review article. Owing to the underlying photophysical phenomenon, fluorescent AIE active molecules show more impact on sensing applications. The major focus in current research efforts is on the development of AIE active materials such as TPE based organic fluorescent molecules, metal organic framework, and polymers that can be employed for the detection of toxic pollutants such as CN- , NO2- , Hg2+ , Cd2+ , As3+ , As5+ , F- , Pb2+ , Sb3+ ions.
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Affiliation(s)
- Geeta A. Zalmi
- School of Chemical SciencesGoa UniversityTaleigaoPlateau Goa403206India
| | - Vilas K. Gawade
- School of Chemical SciencesGoa UniversityTaleigaoPlateau Goa403206India
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4
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Wu M, Yang DD, Zheng HW, Liang QF, Li JB, Kang Y, Li S, Jiao C, Zheng XJ, Jin LP. A multi-binding site hydrazone-based chemosensor for Zn(ii) and Cd(ii): a new strategy for the detection of metal ions in aqueous media based on aggregation-induced emission. Dalton Trans 2021; 50:1507-1513. [PMID: 33443271 DOI: 10.1039/d0dt04062b] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A multi-binding site chemosensor, N-(3-methoxy-2-hydroxybenzylidene)-3-hydroxy-2-naphthahydrazone (H3L), with excited-state intramolecular proton transfer (ESIPT) behaviour was prepared and characterized. It possesses no aggregation-induced emission (AIE) characteristics but can detect Cd2+ and Zn2+ ions selectively in the "off-on" mode based on the AIE of their complexes in the media of THF/HEPES and THF/H2O, respectively, which will provide a new strategy for target detection based on AIE. The detection limits of Zn2+ and Cd2+ were 9.85 × 10-9 M and 1.27 × 10-7 M, respectively. The aggregates of the complexes formed in the detection system were confirmed by DLS data and SEM images. The corresponding Zn2+ (1) and Cd2+ (2) complexes were prepared to investigate the response mechanism. Powder X-ray diffraction and single crystal X-ray diffraction proved that complex 1 is the species formed in the detection system. The chemosensor coordinates with the Cd2+ and Zn2+ ions in different formation and coordination modes, leading to the emission position of the aggregates at 560 and 645 nm, respectively, based on which Cd2+ ions were successfully differentiated from Zn2+ ions. Moreover, the detection of Cd2+ and Zn2+ ions was realized qualitatively via test paper and quantitatively in water.
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Affiliation(s)
- Min Wu
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Dong-Dong Yang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Han-Wen Zheng
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Qiong-Fang Liang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Jia-Bin Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Yang Kang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Sai Li
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Chen Jiao
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Xiang-Jun Zheng
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
| | - Lin-Pei Jin
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
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6
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Risi G, Becker M, Housecroft CE, Constable EC. Are Alkynyl Spacers in Ancillary Ligands in Heteroleptic Bis(diimine)copper(I) Dyes Beneficial for Dye Performance in Dye-Sensitized Solar Cells? Molecules 2020; 25:E1528. [PMID: 32230862 PMCID: PMC7180879 DOI: 10.3390/molecules25071528] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/22/2020] [Accepted: 03/26/2020] [Indexed: 11/16/2022] Open
Abstract
The syntheses of 4,4'-bis(4-dimethylaminophenyl)-6,6'-dimethyl-2,2'-bipyridine (1), 4,4'-bis(4-dimethylaminophenylethynyl)-6,6'-dimethyl-2,2'-bipyridine (2), 4,4'-bis(4-diphenylaminophenyl)-6,6'-dimethyl-2,2'-bipyridine (3), and 4,4'-bis(4-diphenylaminophenylethynyl)-6,6'-dimethyl-2,2'-bipyridine (4) are reported along with the preparations and characterisations of their homoleptic copper(I) complexes [CuL2][PF6] (L = 1-4). The solution absorption spectra of the complexes exhibit ligand-centred absorptions in addition to absorptions in the visible region assigned to a combination of intra-ligand and metal-to-ligand charge-transfer. Heteroleptic [Cu(5)(Lancillary)]+ dyes in which 5 is the anchoring ligand ((6,6'-dimethyl-[2,2'-bipyridine]-4,4'-diyl)bis(4,1-phenylene))bis(phosphonic acid) and Lancillary = 1-4 have been assembled on fluorine-doped tin oxide (FTO)-TiO2 electrodes in dye-sensitized solar cells (DSCs). Performance parameters and external quantum efficiency (EQE) spectra of the DSCs (four fully-masked cells for each dye) reveal that the best performing dyes are [Cu(5)(1)]+ and [Cu(5)(3)]+. The alkynyl spacers are not beneficial, leading to a decrease in the short-circuit current density (JSC), confirmed by lower values of EQEmax. Addition of a co-absorbent (n-decylphosphonic acid) to [Cu(5)(1)]+ lead to no significant enhancement of performance for DSCs sensitized with [Cu(5)(1)]+. Electrochemical impedance spectroscopy (EIS) has been used to investigate the interfaces in DSCs; the analysis shows that more favourable electron injection into TiO2 is observed for sensitizers without the alkynyl spacer and confirms higher JSC values for [Cu(5)(1)]+.
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Affiliation(s)
| | | | | | - Edwin C. Constable
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, CH-4058 Basel, Switzerland; (G.R.); (M.B.); (C.E.H.)
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7
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A multifunctional aggregation-induced emission (AIE)-active fluorescent chemosensor for detection of Zn2+ and Hg2+. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130489] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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8
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Wang K, Lu H, Liu B, Yang J. A high-efficiency and low-cost AEE polyurethane chemo-sensor for Fe3+ and explosives detection. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.10.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Yao Y, Wang F, Zhang X, Wang D, Song L, Zhang Y, Liu L, Chen Y. A small molecular boron-phenylpyrrin sensor for H+/Fe3+ and its application as a digital demultiplexer. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618500682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A julolidine-based boron-phenylpyrrin small molecule has been designed and synthesized through a one-pot condensation-complexation procedure. Systematic optical studies show that this compound displays two distinct optical responses to the addition of HCl and Fe[Formula: see text] in succession: the addition of HCl induces an obvious red shift in its maximum absorption and fluorescence emission bands accompanied with the fluorescence quenching, whereas after synchronously adding H[Formula: see text] and Fe[Formula: see text], the maximum absorption and fluorescence emission wavelength were found to shift little but with an obvious decrease in the absorbance and fluorescence intensity, suggesting the dual-detecting nature of this compound to H[Formula: see text] and Fe[Formula: see text] under acid conditions. More interestingly, based on the HCl/Fe[Formula: see text]-mediated absorption and fluorescence signal features, JBPP can function as AND, NAND, INH and IMP logic gates which can be further developed into a 2:4 digital demultiplexer These will endow this small molecule compound with great potential for applications in molecular logic material, chemosensors and biological fields.
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Affiliation(s)
- Yiwei Yao
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Fang Wang
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Xiuling Zhang
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Dunqing Wang
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Lingyun Song
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Yu Zhang
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Leifang Liu
- Department of Chemistry, Dezhou University, Dezhou 253023, China
| | - Yuting Chen
- Department of Chemistry, Dezhou University, Dezhou 253023, China
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10
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Zhang W, Wang N, Liu YH, Jiao SY, Zhang WW, Pu XM, Yu XQ. 1,4-Dihydropyridines: discovery of minimal AIEEgens and their mitochondrial imaging applications. J Mater Chem B 2017; 5:464-469. [DOI: 10.1039/c6tb02135b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Minimal AIEEgens containing only a single ring were synthesized through a facile biocatalysis procedure and were successfully utilized in the imaging of mitochondria.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Na Wang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shu-Yan Jiao
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Wei-Wei Zhang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xue-Mei Pu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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11
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Feng B, Wan D, Yan L, Kadam VD, You J, Gao G. A facile access to substituted cationic 12-azapyrene salts by rhodium(iii)-catalyzed C–H annulation of N-arylpyridinium salts. RSC Adv 2016. [DOI: 10.1039/c6ra15464f] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rhodium(iii)-catalyzed C–H annulation of N-arylpyridinium salts with internal alkynes directly affords substituted cationic 12-azapyrene salts, which exhibit tunable and intense fluorescence.
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Affiliation(s)
- Boya Feng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Chengdu 610064
- P. R. China
| | - Danyang Wan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Chengdu 610064
- P. R. China
| | - Lipeng Yan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Chengdu 610064
- P. R. China
| | - Vilas D. Kadam
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Chengdu 610064
- P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Chengdu 610064
- P. R. China
| | - Ge Gao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Chengdu 610064
- P. R. China
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12
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Jacquemin D, Duchemin I, Blase X. 0-0 Energies Using Hybrid Schemes: Benchmarks of TD-DFT, CIS(D), ADC(2), CC2, and BSE/GW formalisms for 80 Real-Life Compounds. J Chem Theory Comput 2015; 11:5340-59. [PMID: 26574326 PMCID: PMC4642227 DOI: 10.1021/acs.jctc.5b00619] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Indexed: 02/05/2023]
Abstract
The 0-0 energies of 80 medium and large molecules have been computed with a large panel of theoretical formalisms. We have used an approach computationally tractable for large molecules, that is, the structural and vibrational parameters are obtained with TD-DFT, the solvent effects are accounted for with the PCM model, whereas the total and transition energies have been determined with TD-DFT and with five wave function approaches accounting for contributions from double excitations, namely, CIS(D), ADC(2), CC2, SCS-CC2, and SOS-CC2, as well as Green's function based BSE/GW approach. Atomic basis sets including diffuse functions have been systematically applied, and several variations of the PCM have been evaluated. Using solvent corrections obtained with corrected linear-response approach, we found that three schemes, namely, ADC(2), CC2, and BSE/GW allow one to reach a mean absolute deviation smaller than 0.15 eV compared to the measurements, the two former yielding slightly better correlation with experiments than the latter. CIS(D), SCS-CC2, and SOS-CC2 provide significantly larger deviations, though the latter approach delivers highly consistent transition energies. In addition, we show that (i) ADC(2) and CC2 values are extremely close to each other but for systems absorbing at low energies; (ii) the linear-response PCM scheme tends to overestimate solvation effects; and that (iii) the average impact of nonequilibrium correction on 0-0 energies is negligible.
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Affiliation(s)
- Denis Jacquemin
- Laboratoire
CEISAM - UMR CNR 6230, Université
de Nantes, 2 Rue de la
Houssinière, BP 92208, 44322 Nantes Cedex 3, France
- Institut
Universitaire de France, 103 bd St. Michel, 75005 Paris Cedex 5, France
| | - Ivan Duchemin
- INAC, SP2M/L_Sim,
CEA/UJF, Cedex 09, 38054 Grenoble, France
- Institut
NEEL, Univ. Grenoble Alpes, F-38042 Grenoble, France
| | - Xavier Blase
- Institut
NEEL, Univ. Grenoble Alpes, F-38042 Grenoble, France
- Institut
NEEL, CNRS, F-38042 Grenoble, France
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13
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Zhang L, Hu W, Yu L, Wang Y. Click synthesis of a novel triazole bridged AIE active cyclodextrin probe for specific detection of Cd2+. Chem Commun (Camb) 2015; 51:4298-301. [DOI: 10.1039/c4cc09769f] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel aggregation induced emission (AIE) active cyclodextrin (CD) was synthesized via click chemistry, which is the first reported clicked AIE probe for the specific detection of Cd2+.
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Affiliation(s)
- Lifang Zhang
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Wenping Hu
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Liping Yu
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
| | - Yong Wang
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300072
- China
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