共 53 条
A dual probe for selective sensing of Zn (II) by fluorescent and Cu (II) by colorimetric methods in different systems based on 7,8-benzochromone-3-carbaldehyde -(fluorescein)hydrazone
被引:22
作者:

Sun, Jie
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Li, Tian-rong
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Liu, Cong
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Xue, Jia
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Tian, Li-mei
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Liu, Kui
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Li, Si-liang
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

Yang, Zheng-yin
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Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
机构:
[1] Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Fluorescent probe;
Benzochromone hydrazone;
Zn2+;
Cu2+;
Colorimetry;
SCHIFF-BASE;
ZINC;
COPPER;
ZN(II);
SENSOR;
IONS;
DISEASE;
CU(II);
DIPICOLYLAMINE;
COORDINATION;
D O I:
10.1016/j.jphotochem.2020.113007
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In this study, a novel fluorescent probe sensor, 7,8-benzochromone-3-carbaldehyde (fluorescein)hydrazone L, was designed and synthesized. Based on the photoinduced electron transfer (PET) process, L can detect Zn2+ in the solution of EtOH/H2O (9/1, V/V). The probe had high selectivity and sensitivity to Zn2+ with a lower detection limit of 3.4 x 10(-7) M. Furthermore, the coordination ratio of L-Zn2+ was 1:1, which could be corroborated by Job's plot. In addition, in the EtOH/H2O (5/2, V/V) solution of the probe L, Cu2+ was added to produce a marked change in color from achromatous to yellow, indicating that the probe L could detect Cu2+ by colorimetry, which was detectable by the naked eye, simply and quickly. According to the Benesi-Hildebrand equation, the complexing constants values of L-Zn2+ and L-Cu2+ were 9.8 x 10(4) M-1 and 1.009 x 10(5) M-1, respectively.
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共 53 条
[1]
A 'turn-on' fluorescent sensor for the selective detection of cobalt and nickel ions in aqueous media
[J].
Abebe, Fasil A.
;
Eribal, Carla Sue
;
Ramakrishna, Guda
;
Sinn, Ekkehard
.
TETRAHEDRON LETTERS,
2011, 52 (43)
:5554-5558

Abebe, Fasil A.
论文数: 0 引用数: 0
h-index: 0
机构:
Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA

Eribal, Carla Sue
论文数: 0 引用数: 0
h-index: 0
机构:
Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA

Ramakrishna, Guda
论文数: 0 引用数: 0
h-index: 0
机构:
Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA

Sinn, Ekkehard
论文数: 0 引用数: 0
h-index: 0
机构:
Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA Western Michigan Univ, Dept Chem, Kalamazoo, MI 49008 USA
[2]
Zinc coordination sphere in biochemical zinc sites
[J].
Auld, DS
.
BIOMETALS,
2001, 14 (3-4)
:271-313

Auld, DS
论文数: 0 引用数: 0
h-index: 0
机构:
Harvard Univ, Sch Med, Ctr Biochem & Biophys Sci & Med, Boston, MA 02115 USA Harvard Univ, Sch Med, Ctr Biochem & Biophys Sci & Med, Boston, MA 02115 USA
[3]
Pentaquinone based probe for nanomolar detection of zinc ions: Chemosensing ensemble as an antioxidant
[J].
Bhalla, Vandana
;
Roopa
;
Kumar, Manoj
.
DALTON TRANSACTIONS,
2013, 42 (04)
:975-980

Bhalla, Vandana
论文数: 0 引用数: 0
h-index: 0
机构:
Guru Nanak Dev Univ, Dept Chem, UGC Sponsored Ctr Adv Studies 1, Amritsar 143005, Punjab, India Guru Nanak Dev Univ, Dept Chem, UGC Sponsored Ctr Adv Studies 1, Amritsar 143005, Punjab, India

Roopa
论文数: 0 引用数: 0
h-index: 0
机构:
Guru Nanak Dev Univ, Dept Chem, UGC Sponsored Ctr Adv Studies 1, Amritsar 143005, Punjab, India Guru Nanak Dev Univ, Dept Chem, UGC Sponsored Ctr Adv Studies 1, Amritsar 143005, Punjab, India

Kumar, Manoj
论文数: 0 引用数: 0
h-index: 0
机构:
Guru Nanak Dev Univ, Dept Chem, UGC Sponsored Ctr Adv Studies 1, Amritsar 143005, Punjab, India Guru Nanak Dev Univ, Dept Chem, UGC Sponsored Ctr Adv Studies 1, Amritsar 143005, Punjab, India
[4]
Ce (III) - Porphyrin Sandwich Complex Ce2(TPP)3: A Rod-Like Nanoparticle as a Fluorescence Turn-Off Probe for Detection of Hg (II) and Cu (II)
[J].
Boroujerdi, Ramin
.
JOURNAL OF FLUORESCENCE,
2016, 26 (03)
:781-790

Boroujerdi, Ramin
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Birjand, Dept Chem, Fac Sci, Birjand, Iran Univ Birjand, Dept Chem, Fac Sci, Birjand, Iran
[5]
A Highly Selective Chemosensor for AI(III) and Zn(II) and Its Coordination with Metal Ions
[J].
Cao, Wei
;
Zheng, Xiang-Jun
;
Sun, Ji-Ping
;
Wong, Wing-Tak
;
Fang, De-Cai
;
Zhang, Jia-Xin
;
Jin, Lin-Pei
.
INORGANIC CHEMISTRY,
2014, 53 (06)
:3012-3021

Cao, Wei
论文数: 0 引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

Zheng, Xiang-Jun
论文数: 0 引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

Sun, Ji-Ping
论文数: 0 引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

Wong, Wing-Tak
论文数: 0 引用数: 0
h-index: 0
机构:
Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Hong Kong, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

Fang, De-Cai
论文数: 0 引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

Zhang, Jia-Xin
论文数: 0 引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China

Jin, Lin-Pei
论文数: 0 引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China Beijing Normal Univ, Coll Chem, Bening Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China
[6]
A new half-condensed Schiff base platform: structures and sensing of Zn2+and H2PO4- ions in an aqueous medium
[J].
Chakraborty, Sujaya
;
Lohar, Somenath
;
Dhara, Koushik
;
Ghosh, Raktim
;
Dam, Somasri
;
Zangrando, Ennio
;
Chattopadhyay, Pabitra
.
DALTON TRANSACTIONS,
2020, 49 (26)
:8991-9001

Chakraborty, Sujaya
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

Lohar, Somenath
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

Dhara, Koushik
论文数: 0 引用数: 0
h-index: 0
机构:
Sambhu Nath Coll, Dept Chem, Birbhum 731303, W Bengal, India Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

Ghosh, Raktim
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Burdwan, Dept Microbiol, Burdwan 713104, W Bengal, India Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

Dam, Somasri
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Burdwan, Dept Microbiol, Burdwan 713104, W Bengal, India Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

Zangrando, Ennio
论文数: 0 引用数: 0
h-index: 0
机构:
Dipartimento Sci Chim & Farmaceut, Via Giorgieri 1, I-34127 Trieste, Italy Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India

Chattopadhyay, Pabitra
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India Univ Burdwan, Dept Chem, Burdwan 713104, W Bengal, India
[7]
Ratiometric fluorescence detection of Cu(II) with a keto-dipicolylamine ligand: A mechanistic implication
[J].
Cho, Seo Won
;
Rao, Alla Sreenivasa
;
Bhunia, Snehasis
;
Reo, Ye Jin
;
Singha, Subhankar
;
Ahn, Kyo Han
.
SENSORS AND ACTUATORS B-CHEMICAL,
2019, 279 (204-212)
:204-212

论文数: 引用数:
h-index:
机构:

Rao, Alla Sreenivasa
论文数: 0 引用数: 0
h-index: 0
机构:
Pohang Univ Sci & Technol POSTECH, Dept Chem, 77 Cheongam Ro, Pohang 37673, Gyungbuk, South Korea Pohang Univ Sci & Technol POSTECH, Dept Chem, 77 Cheongam Ro, Pohang 37673, Gyungbuk, South Korea

Bhunia, Snehasis
论文数: 0 引用数: 0
h-index: 0
机构:
Pohang Univ Sci & Technol POSTECH, NINT, 77 Cheongam Ro, Pohang 37673, Gyungbuk, South Korea Pohang Univ Sci & Technol POSTECH, Dept Chem, 77 Cheongam Ro, Pohang 37673, Gyungbuk, South Korea

Reo, Ye Jin
论文数: 0 引用数: 0
h-index: 0
机构:
Pohang Univ Sci & Technol POSTECH, Dept Chem, 77 Cheongam Ro, Pohang 37673, Gyungbuk, South Korea Pohang Univ Sci & Technol POSTECH, Dept Chem, 77 Cheongam Ro, Pohang 37673, Gyungbuk, South Korea

论文数: 引用数:
h-index:
机构:

论文数: 引用数:
h-index:
机构:
[8]
Copper at synapse: Release, binding and modulation of neurotransmission
[J].
D'Ambrosi, Nadia
;
Rossi, Luisa
.
NEUROCHEMISTRY INTERNATIONAL,
2015, 90
:36-45

D'Ambrosi, Nadia
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Cattolica Sacro Cuore, Inst Anat & Cell Biol, Rome, Italy Univ Cattolica Sacro Cuore, Inst Anat & Cell Biol, Rome, Italy

Rossi, Luisa
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Roma Tor Vergata, Dept Biol, I-00133 Rome, Italy Univ Cattolica Sacro Cuore, Inst Anat & Cell Biol, Rome, Italy
[9]
Copper pathology in vulnerable brain regions in Parkinson's disease
[J].
Davies, Katherine M.
;
Bohic, Sylvain
;
Carmona, Asuncion
;
Ortega, Richard
;
Cottam, Veronica
;
Hare, Dominic J.
;
Finberg, John P. M.
;
Reyes, Stefanie
;
Halliday, Glenda M.
;
Mercer, Julian F. B.
;
Double, Kay L.
.
NEUROBIOLOGY OF AGING,
2014, 35 (04)
:858-866

Davies, Katherine M.
论文数: 0 引用数: 0
h-index: 0
机构:
Neurosci Res Australia, Sydney, NSW, Australia
Univ New S Wales, Fac Med, Sch Med Sci, Sydney, NSW, Australia Neurosci Res Australia, Sydney, NSW, Australia

Bohic, Sylvain
论文数: 0 引用数: 0
h-index: 0
机构:
Grenoble Inst Neurosci, Team 6, INSERM, U836, Grenoble, France
European Synchrotron Radiat Facil, F-38043 Grenoble, France
Univ Grenoble 1, Grenoble Inst Neurosci, Grenoble, France Neurosci Res Australia, Sydney, NSW, Australia

Carmona, Asuncion
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, Gradignan, France
CNRS, IN2P3, CENBG, UMR 5797, Gradignan, France Neurosci Res Australia, Sydney, NSW, Australia

Ortega, Richard
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, Gradignan, France
CNRS, IN2P3, CENBG, UMR 5797, Gradignan, France Neurosci Res Australia, Sydney, NSW, Australia

Cottam, Veronica
论文数: 0 引用数: 0
h-index: 0
机构:
Neurosci Res Australia, Sydney, NSW, Australia Neurosci Res Australia, Sydney, NSW, Australia

Hare, Dominic J.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Technol Sydney, Elemental Bioimaging Facil, Sydney, NSW 2007, Australia
Univ Melbourne, Florey Inst Neurosci & Mental Hlth, Parkville, Vic 3052, Australia Neurosci Res Australia, Sydney, NSW, Australia

Finberg, John P. M.
论文数: 0 引用数: 0
h-index: 0
机构:
Technion Israel Inst Technol, Fac Med, Haifa, Israel Neurosci Res Australia, Sydney, NSW, Australia

Reyes, Stefanie
论文数: 0 引用数: 0
h-index: 0
机构:
Neurosci Res Australia, Sydney, NSW, Australia
Univ New S Wales, Fac Med, Sch Med Sci, Sydney, NSW, Australia Neurosci Res Australia, Sydney, NSW, Australia

Halliday, Glenda M.
论文数: 0 引用数: 0
h-index: 0
机构:
Neurosci Res Australia, Sydney, NSW, Australia
Univ New S Wales, Fac Med, Sch Med Sci, Sydney, NSW, Australia Neurosci Res Australia, Sydney, NSW, Australia

Mercer, Julian F. B.
论文数: 0 引用数: 0
h-index: 0
机构:
Deakin Univ, Ctr Cellular & Mol Biol, Melbourne, Vic, Australia Neurosci Res Australia, Sydney, NSW, Australia

Double, Kay L.
论文数: 0 引用数: 0
h-index: 0
机构:
Neurosci Res Australia, Sydney, NSW, Australia
Univ New S Wales, Fac Med, Sch Med Sci, Sydney, NSW, Australia
Univ Sydney, Discipline Biomed Sci, Sch Med Sci, Sydney Med Sch, Sydney, NSW 2006, Australia Neurosci Res Australia, Sydney, NSW, Australia
[10]
Diketopyrrolopyrrole-based fluorescence probes for the imaging of lysosomal Zn2+ and identification of prostate cancer in human tissue
[J].
Du, Chenchen
;
Fu, Shibo
;
Wang, Xiaohua
;
Sedgwick, Adam C.
;
Zhen, Wei
;
Li, Minjie
;
Li, Xinqiang
;
Zhou, Juan
;
Wang, Zhong
;
Wang, Hongyu
;
Sessler, Jonathan L.
.
CHEMICAL SCIENCE,
2019, 10 (22)
:5699-5704

Du, Chenchen
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Fu, Shibo
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Jiao Tong Univ, Sch Med, Shanghai Peoples Hosp 9, Dept Urol, Shanghai 200011, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Wang, Xiaohua
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Sedgwick, Adam C.
论文数: 0 引用数: 0
h-index: 0
机构:
Univ Texas Austin, Dept Chem, 105 E 24th St A5300, Austin, TX 78712 USA Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Zhen, Wei
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Li, Minjie
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Li, Xinqiang
论文数: 0 引用数: 0
h-index: 0
机构:
Zhengzhou Univ, Affiliated Hosp 1, Pathol Dept, 1 Jianshe East Rd, Zhengzhou 450052, Henan, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Zhou, Juan
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Jiao Tong Univ, Sch Med, Shanghai Peoples Hosp 9, Dept Urol, Shanghai 200011, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Wang, Zhong
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Jiao Tong Univ, Sch Med, Shanghai Peoples Hosp 9, Dept Urol, Shanghai 200011, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Wang, Hongyu
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China

Sessler, Jonathan L.
论文数: 0 引用数: 0
h-index: 0
机构:
Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China
Univ Texas Austin, Dept Chem, 105 E 24th St A5300, Austin, TX 78712 USA Shanghai Univ, Ctr Supramol Chem & Catalysis, Coll Sci, Dept Chem, 99 Shangda Rd, Shanghai 200444, Peoples R China