Study on the structural and photophysical properties of N-acyl amino acid europium complexes

化学 发光 荧光 质子核磁共振 猝灭(荧光) 光化学 密度泛函理论 光谱学 溶剂 红外光谱学 吸收光谱法 物理化学 计算化学 有机化学 离子 物理 光电子学 量子力学
作者
Jiakang Han,Gerile Naren,Aorigele Bohnuud,Shi Yunhua,Ying Zhang
出处
期刊:Arabian Journal of Chemistry [Elsevier BV]
卷期号:16 (11): 105246-105246 被引量:2
标识
DOI:10.1016/j.arabjc.2023.105246
摘要

In this paper, a series of acyl amino acid europium complexes (Eu[CH3(CH2CH2)nCONHCH(CH3)COO]3, n=0∼5) were synthesized using N-acyl amido alanine as ligands, and their structures and photophysical properties were studied.The structural and functional group information of europium complexes was obtained by elemental analysis, as well as infrared and hydrogen nuclear magnetic spectral analysis (1H NMR). The theoretical structure of the complexes was obtained by density functional theory (DFT) calculations; the theoretical structure of the complex was shown to be reliable by the comparison of theoretical and experimental vibrational and 1H NMR spectra. Additionally, the photophysical properties of the solid complexes at room temperature were determined by analysis of Ultraviolet–visible spectroscopy(UV-vis) and luminescence spectra. From the test results, it can be seen that the complex had good light absorption capacity in the range of 200 - 300 nm; By comparison of the luminescence intensities of the complexes and EuCl3 proved that acyl amino acid ligands played a role in sensitizing Eu3+ characteristic luminescence. In addition, the effect of solution concentration on fluorescence performance has been studied. It can be inferred that complexes with longer carbon chains are less prone to aggregation in solution (increasing repulsive forces with increasing hydrophobicity), and the concentration, where fluorescence quenching occurs, is higher. Moreover, the solvent effect on the luminescence performance of the complexes was investigated by testing the luminescence spectrum of the complexes with different carbon chain lengths in a methanol solution(0.01 mol/L). Finally, the variable temperature spectral analysis provided information on the temperature-dependent variation of the luminescence properties of the complexes. The fluorescence performance of complexes with different carbon chain lengths that having different changing trends with temperature, with long carbon chain complexes exhibiting better high-temperature fluorescence stability.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
czz014完成签到,获得积分10
2秒前
彩色的芝麻完成签到 ,获得积分10
3秒前
YC完成签到,获得积分10
7秒前
GJL完成签到,获得积分10
11秒前
凶狠的寄风完成签到 ,获得积分10
12秒前
YingyingFan完成签到,获得积分10
16秒前
xiaoguang li完成签到,获得积分10
16秒前
无相完成签到 ,获得积分10
17秒前
21秒前
sunsun10086完成签到 ,获得积分10
22秒前
kelaibing完成签到,获得积分10
24秒前
CYAA完成签到,获得积分10
24秒前
26秒前
沉默的鸽子关注了科研通微信公众号
27秒前
酷波er应助冷静的依瑶采纳,获得10
27秒前
CC完成签到 ,获得积分10
29秒前
李荷花完成签到 ,获得积分10
29秒前
易柒发布了新的文献求助10
34秒前
36秒前
futianyu完成签到 ,获得积分0
36秒前
迈克老狼发布了新的文献求助10
39秒前
白敬亭发布了新的文献求助10
41秒前
刘威完成签到,获得积分10
44秒前
新星完成签到 ,获得积分10
46秒前
丫丫完成签到,获得积分10
48秒前
nulinuli完成签到 ,获得积分10
48秒前
49秒前
51秒前
fabius0351完成签到 ,获得积分10
51秒前
51秒前
热心雪一完成签到 ,获得积分10
52秒前
53秒前
njzhangyanyang完成签到,获得积分10
53秒前
洁净的闭月完成签到,获得积分10
56秒前
殷启维完成签到,获得积分10
56秒前
79完成签到 ,获得积分10
57秒前
Nick发布了新的文献求助10
57秒前
57秒前
燕子发布了新的文献求助10
58秒前
安静的思卉完成签到 ,获得积分10
59秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2700
Neuromuscular and Electrodiagnostic Medicine Board Review 1000
こんなに痛いのにどうして「なんでもない」と医者にいわれてしまうのでしょうか 510
いちばんやさしい生化学 500
Genre and Graduate-Level Research Writing 500
The First Nuclear Era: The Life and Times of a Technological Fixer 500
岡本唐貴自伝的回想画集 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3674689
求助须知:如何正确求助?哪些是违规求助? 3229843
关于积分的说明 9787213
捐赠科研通 2940459
什么是DOI,文献DOI怎么找? 1612005
邀请新用户注册赠送积分活动 761063
科研通“疑难数据库(出版商)”最低求助积分说明 736522