Study on the Supramolecular Interaction of Dibenzoyl Peroxide(BPO) and ß-Cyclodextrin(ß-CD) by Spectrophtometry and its Analytical Application

2012 ◽  
Vol 554-556 ◽  
pp. 27-30
Author(s):  
Hui Xie ◽  
Yan Min Wang
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Benzoic Acid ◽  
Supramolecular Interaction ◽  
Guest Complex ◽  
Host Guest Complex ◽  
Molecule Recognition ◽  
Excellent Selectivity ◽  
Principal Advantage ◽  
Dibenzoyl Peroxide

The supramolecular interaction of BPO and ß-CD has been studied by spectrophtometry. The mechanism of the inclusion was studied. The results showed that ß-CD react with BPO to form a 2:1 or 1:1 host-guest complex.The ß-CD reacts with benzoic acid to form a 1:1 host-guest complex after the BPO was reduced by hydroxyl ammonium chloride.Based on the enhancement of the absorbance of BPO produced through complex formation, a spectrophotometric method for determination BPO in bulk aqueous solution in the presence of ß-CD was developed. A linear relationship between the absorbance and BPO concentration was obtained in the range of 0.2～50 μg.ml-1. The proposed method was used to determine the BPO in the flour with satisfactory results. The principal advantage of the proposed method is its excellent selectivity based on molecule recognition of ß-CD and simple.

Molecular Tweezer and Clip in Aqueous Solution:  Unexpected Self-Assembly, Powerful Host−Guest Complex Formation, Quantum Chemical1H NMR Shift Calculation

2006 ◽  
Vol 128 (14) ◽  
pp. 4831-4841 ◽  
Author(s):  
Frank-Gerrit Klärner ◽  
Björn Kahlert ◽  
Anke Nellesen ◽  
Jan Zienau ◽  
Christian Ochsenfeld ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Self Assembly ◽  
Guest Complex ◽  
Host Guest Complex ◽  
Molecular Tweezer ◽  
Shift Calculation

scholarly journals Molecular Tweezer and Clip in Aqueous Solution: Unexpected Self-Assembly, Powerful Host−Guest Complex Formation, Quantum Chemical1H NMR Shift Calculation

2010 ◽  
Vol 132 (11) ◽  
pp. 4029-4029 ◽  
Author(s):  
Frank-Gerrit Klärner ◽  
Björn Kahlert ◽  
Anke Nellesen ◽  
Jan Zienau ◽  
Christian Ochsenfeld ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Self Assembly ◽  
Guest Complex ◽  
Host Guest Complex ◽  
Molecular Tweezer ◽  
Shift Calculation

Illustration of a computational pipeline for evaluating cyclodextrin host–guest complex formation through conformational capture of bullvalene

2021 ◽  
Vol 154 (15) ◽  
pp. 154105
Author(s):  
Zahra Shadfar ◽  
Oussama Yahiaoui ◽  
Thomas A. Collier ◽  
Thomas Fallon ◽  
Jane R. Allison
Keyword(s):  
Complex Formation ◽  
Computational Pipeline ◽  
Guest Complex ◽  
Host Guest Complex

scholarly journals Enhanced photocatalytic activity of gold nanoparticles driven by supramolecular host–guest chemistry

2017 ◽  
Vol 53 (13) ◽  
pp. 2126-2129 ◽  
Author(s):  
Marc Padilla ◽  
Francesca Peccati ◽  
José Luis Bourdelande ◽  
Xavier Solans-Monfort ◽  
Gonzalo Guirado ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Photocatalytic Activity ◽  
Complex Formation ◽  
Guest Complex ◽  
Host Guest Complex ◽  
Photocatalytic Activities ◽  
Guest Chemistry

Gold nanoparticles coated with cyclodextrins show enhanced plasmon-based photocatalytic activities by promoting catalyst–reactant approximationviasupramolecular host–guest complex formation.

Taco complex-templated highly regio- and stereo-selective photodimerization of a coumarin-containing crown ether

2017 ◽  
Vol 53 (10) ◽  
pp. 1688-1691 ◽  
Author(s):  
Peifa Wei ◽  
Haoze Wang ◽  
Kecheng Jie ◽  
Feihe Huang
Keyword(s):  
Complex Formation ◽  
Crown Ether ◽  
Quantitative Yield ◽  
Guest Complex ◽  
Type Host ◽  
Host Guest Complex ◽  
Stereo Selectivity

We design a coumarin-containing bis(m-phenylene)-32-crown-10 derivative which efficiently controls the regio- and stereo-selectivity of the photodimerization of its two terminal coumarin groups templated by taco-type host–guest complex formation to selectively produce the syn-head-to-tail cryptand isomer in quantitative yield.

Host-Guest Complexation of Aromatic Carboxylic Acids and their Conjugate Bases by β-Cyclodextrins Monosubstituted at C 6 by Linear and Cyclic Alkyl Triamines in Aqueous Solution

1999 ◽  
Vol 52 (12) ◽  
pp. 1157 ◽  
Author(s):  
Suzanna D. Kean ◽  
Bruce L. May ◽  
Philip Clements ◽  
Christopher J. Easton ◽  
Stephen F. Lincoln
Keyword(s):  
Aqueous Solution ◽  
Carboxylic Acid ◽  
Complex Stability ◽  
Guest Complex ◽  
Acid Complex ◽  
K Value ◽  
Host Guest Complex ◽  
Ph Range ◽  
Conjugate Bases ◽  
Significant Factors

A pH titrimetric study of the complexation of the guests benzoic acid, 4-methylbenzoic acid and (R)- and (S)-2-phenylpropanoic acids and their conjugate bases by the host 6A-[2-(2-aminoethylamino)ethylamino]-, 6A-[3-(3-aminopropylamino)propylamino]-, 6A-(1,4,7-triazacyclononan-1-yl)-, and 6A-(1,5,9-triazacyclododecan-1-yl)-6A-deoxy-β-cyclodextrins (βCDdien, βCDdipn, βCDtacn and βCDtacdo, respectively) is reported. Over the pH range 3.0–11.0, 49 host–guest complexes were detected. Their stability constants (K) range from 220±50 dm3 mol–1 for the βCDdienH22+ ·benzoate– complex to 48000±11000 dm3 mol–1 for the βCDdipnH22+·(S)-2-phenylpropanoic acid complex at 298.2 K and I = 0.10 mol dm–3 (NaClO4). The latter K value is among the highest reported for a complex of a simple carboxylic acid with a substituted β-cyclodextrin. The charge, hydrophobicity and stereochemistry of both host and guest appear to be significant factors in the variation of host–guest complex stability. 1H ROESY n.m.r. studies of some of the complexes formed are also reported.

scholarly journals Analysis of Solid‐State Luminescence Emission Amplification at Substituted Anthracenes by Host–Guest Complex Formation

2020 ◽  
Vol 26 (72) ◽  
pp. 17288-17288
Author(s):  
Timo Schillmöller ◽  
Paul Niklas Ruth ◽  
Regine Herbst‐Irmer ◽  
Dietmar Stalke
Keyword(s):  
Solid State ◽  
Complex Formation ◽  
Guest Complex ◽  
Luminescence Emission ◽  
Host Guest Complex ◽  
State Luminescence
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