Self-Assembly Tuning of α-Cyanostilbene Fluorogens: Aggregates to Nanostructures

被引：18

作者：

Vasu, Anuji K. ^{[1
]}

Radhakrishna, Mithun ^{[2
]}

Kanvah, Sriram ^{[1
]}

机构：

[1] Indian Inst Technol Gandhinagar, Dept Chem, Palaj 382355, Gandhinagar, India

[2] Indian Inst Technol Gandhinagar, Dept Chem Engn, Palaj 382355, Gandhinagar, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2017年 / 121卷 / 40期

关键词：

ENHANCED EMISSION; FLUORESCENCE; DERIVATIVES; PHOTOISOMERIZATION; LUMINESCENCE; ORGANIZATION; ORGANOGELS;

D O I：

10.1021/acs.jpcc.7b06225

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：

Two AIE active alpha-cyanostilbene fluorophores substituted with octyl and hexadecyl chains were synthesized and examined for their absorption and fluorescence properties. The alkoxy substitution tunes the self-assembly in water and exhibits an intensity enhanced bathochromic shift, resulting in well-defined nanospheres with the formation of nice dendrimeric structures. Monte Carlo simulations validate our experimental observations and show the greater propensity of self-assembly formation for cyanostilbene containing a hexadecyl chain compared to a derivative containing an octyl chain. The results are substantiated by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and dynamic light scattering (DLS) studies. Such tunable self-assembled nanostructures seem promising for material and biological applications.

引用

页码：22478 / 22486

页数：9

共 42 条

[1] Photoisomerization of Trans Ortho-, Meta-, Para-Nitro Diarylbutadienes: A Case of Regioselectivity [J].

Agnihotri, Harsha ;

Paramasivam, Mahalingavelar ;

Palakollu, Veerabhadraiah ;

Kanvah, Sriram .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 2015, 91 (06) :1324-1331

[2] π-organogels of self-assembled p-phenylenevinylenes:: Soft materials with distinct size, shape, and functions [J].

Ajayaghosh, Ayyappanpillai ;

Praveen, Vakayil K. .

ACCOUNTS OF CHEMICAL RESEARCH, 2007, 40 (08) :644-656

[3]

Akcora P, 2009, NAT MATER, V8, P354, DOI [10.1038/NMAT2404, 10.1038/nmat2404]

[4] Enhanced emission and its switching in fluorescent organic nanoparticles [J].

An, BK ;

Kwon, SK ;

Jung, SD ;

Park, SY .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (48) :14410-14415

[5] π-Conjugated Cyanostilbene Derivatives: A Unique Self-Assembly Motif for Molecular Nanostructures with Enhanced Emission and Transport [J].

An, Byeong-Kwan ;

Gierschner, Johannes ;

Park, Soo Young .

ACCOUNTS OF CHEMICAL RESEARCH, 2012, 45 (04) :544-554

[6]

BIRD RB, 1980, J NON-NEWTON FLUID, V7, P213, DOI 10.1016/0377-0257(80)85007-5

[7] Water-like solvation thermodynamics in a spherically symmetric solvent model with two characteristic lengths [J].

Buldyrev, Sergey V. ;

Kumar, Pradeep ;

Debenedetti, Pablo G. ;

Rossky, Peter J. ;

Stanley, H. Eugene .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (51) :20177-20182

[8] Self-Assembly of Perylene Imide Molecules into 1D Nanostructures: Methods, Morphologies, and Applications [J].

Chen, Shuai ;

Slattum, Paul ;

Wang, Chuanyi ;

Zang, Ling .

CHEMICAL REVIEWS, 2015, 115 (21) :11967-11998

[9] Effect of core twisting on self-assembly and optical properties of perylene bisimide dyes in solution and columnar liquid crystalline phases [J].

Chen, Zhijian ;

Baumeister, Ute ;

Tschierske, Carsten ;

Wuerthner, Frank .

CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (02) :450-465

[10] Molecular packing and solid-state fluorescence of alkoxy-cyano substituted diphenylbutadienes: Structure of the luminescent aggregates [J].

Davis, Riju ;

Kumar, N. S. Saleesh ;

Abraham, Shibu ;

Suresh, C. H. ;

Rath, Nigam P. ;

Tamaoki, Nobuyuki ;

Das, Suresh .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (06) :2137-2146

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