Conglomerate crystallization, chiral recognition and spin-crossover in a host–guest complex consisting of FeIII complexes (host) and [Cr(ox)3]3− (guest)

CrystEngComm ◽  
2012 ◽  
Vol 14 (20) ◽  
pp. 6377 ◽  
Author(s):  
Yukinari Sunatsuki ◽  
Sho Miyahara ◽  
Yuu Sasaki ◽  
Takayoshi Suzuki ◽  
Masaaki Kojima ◽  
...  
Keyword(s):  
Chiral Recognition ◽  
Spin Crossover ◽  
Guest Complex ◽  
Host Guest Complex ◽  
Conglomerate Crystallization

scholarly journals Metalloporphyrin Dimers Bridged by a Peptoid Helix: Host-Guest Interaction and Chiral Recognition

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2741 ◽  
Author(s):  
Yen Lee ◽  
Boyeong Kang ◽  
Jiwon Seo
Keyword(s):  
Drug Delivery ◽  
Molecular Recognition ◽  
Complex Formation ◽  
Asymmetric Catalysis ◽  
Spectroscopic Data ◽  
Chiral Recognition ◽  
Guest Complex ◽  
Molecular Sensing ◽  
Host Guest Complex ◽  
Chirality Induction

Co-facial porphyrins have been designed to construct porphyrin tweezers with versatile molecular recognition capabilities. In this study, we synthesized metalloporphyrin–peptoid conjugates (MPPCs) displaying two metalloporphyrins on a peptoid scaffold with either achiral unfolded (1) or helical (2 and 3) secondary structures. Host–guest complexation of MPPCs was realized with various guests of different lengths and basicities, and the extent of complexation was measured by UV-vis and circular dichroism (CD) spectroscopic titration. Intermolecular and intramolecular chirality induction were observed on achiral and chiral peptoid backbones, respectively. Spectroscopic data indicated that a broad scope of achiral guests can be recognized by chiral 2; in particular, longer and more flexible guests were seen to bind more tightly on 2. In addition, chiral 2 provided a distinct CD couplet with dl-, d-, or l-Lys-OMe, which was a result of the diastereomeric host–guest complex formation. Our results indicated that MPPCs can recognize, contrast, and analyze various achiral, chiral, or racemic molecules. Based on co-facial metalloporphyrins present on peptoid scaffolds, we developed a novel class of porphyrin tweezers, which can be further utilized in asymmetric catalysis, molecular sensing, and drug delivery.

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

Fast Guest Exchange of a 1:1 Zinc Porphyrin–Amine Host–Guest Complex via a Six-Coordinated Zinc Porphyrin

2010 ◽  
Vol 83 (8) ◽  
pp. 950-952 ◽  
Author(s):  
Yutaka Hitomi ◽  
Junya Ohyama ◽  
Minori Takegoshi ◽  
Akira Ando ◽  
Takuzo Funabiki ◽  
...  
Keyword(s):  
Guest Complex ◽  
Zinc Porphyrin ◽  
Host Guest Complex

Probing Multivalent Interactions in a Synthetic Host–Guest Complex by Dynamic Force Spectroscopy

2011 ◽  
Vol 133 (28) ◽  
pp. 10849-10857 ◽  
Author(s):  
Alberto Gomez-Casado ◽  
Henk H. Dam ◽  
M. Deniz Yilmaz ◽  
Daniel Florea ◽  
Pascal Jonkheijm ◽  
...  
Keyword(s):  
Force Spectroscopy ◽  
Dynamic Force ◽  
Guest Complex ◽  
Dynamic Force Spectroscopy ◽  
Host Guest Complex ◽  
Multivalent Interactions

Host−Guest Complex Dependent Regioselectivity in Substitution Reactions of Chlorocyclotriphosphazene-Containing PNP-Crowns with Alkylenediamines

1997 ◽  
Vol 119 (5) ◽  
pp. 1143-1144 ◽  
Author(s):  
Krystyna Brandt ◽  
Iwona Porwolik ◽  
Mariola Siwy ◽  
Teobald Kupka ◽  
Robert A. Shaw ◽  
...  
Keyword(s):  
Substitution Reactions ◽  
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.

A Semiconducting Organic Radical Cationic Host–Guest Complex

ACS Nano ◽  
2012 ◽  
Vol 6 (11) ◽  
pp. 9964-9971 ◽  
Author(s):  
Albert C. Fahrenbach ◽  
Srinivasan Sampath ◽  
Dattatray J. Late ◽  
Jonathan C. Barnes ◽  
Samuel L. Kleinman ◽  
...  
Keyword(s):  
Organic Radical ◽  
Guest Complex ◽  
Host Guest Complex
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