The intramolecular H-bonding effect on the growth and stability of Schiff-base surface covalent organic frameworks

2017 ◽  
Vol 19 (1) ◽  
pp. 539-543 ◽  
Author(s):  
Yi-Ping Mo ◽  
Xuan-He Liu ◽  
Bing Sun ◽  
Hui-Juan Yan ◽  
Dong Wang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Covalent Organic Frameworks ◽  
Base Surface ◽  
Bonding Effect

The role of intramolecular H-bonding in on-surface synthesis and stability of imine based surface covalent organic frameworks is explored.

scholarly journals Rhythmic Features of Movement Synchrony for Bonding Individuals in Dyadic Interaction

2019 ◽  
Vol 44 (1) ◽  
pp. 173-193 ◽  
Author(s):  
Ken Fujiwara ◽  
Masanori Kimura ◽  
Ikuo Daibo
Keyword(s):  
Hierarchical Linear Modeling ◽  
Dyadic Interaction ◽  
Wavelet Coherence ◽  
Linear Modeling ◽  
Theoretical Contribution ◽  
Bonding Effect ◽  
Slow Tempo ◽  
Movement Synchrony ◽  
The Impact

Abstract This study examined ways in which rhythmic features of movement contribute to bonding between individuals. Though previous studies have described synchrony as a form of social glue, this research extends those findings to consider the impact of fast versus slow tempo on movement synchrony. This two-part experiment examined dyadic interactions as they occurred between same-sex strangers (Study 1) and friends (Study 2). Participants were video-recorded as they engaged in 5- or 6-min chats, and synchrony was evaluated using wavelet transform via calculations of cross-wavelet coherence. Study 1 employed regression commonality analysis and hierarchical linear modeling and found that among various frequency bands, rapport between individuals was positively associated with synchrony under 0.025 Hz (i.e., slower than once every 40 s) and 0.5–1.5 Hz (i.e., once every 0.67–2 s). On the contrary, Study 2 determined that synchrony of 0.5–1.5 Hz was not impactful among friend dyads and only predictive of the motivation to cultivate a friendly relationship during interactions with strangers. These results indicate the existence of a distinctive rhythm for bonding individuals, and the role of pre-existing friendship as a moderator of the bonding effect of synchrony. However, the role of relative phase (i.e., timing of movement; same versus opposite timing) remains unclear, as the ratio of in- and anti-phase patterning had no significant influence on perceived rapport and motivation to develop relationships. On the basis of the research results, a theoretical contribution is proposed to the study of interpersonal coordination.

Mixed-ligand copper(ii) Schiff base complexes: the vital role of co-ligands in DNA/protein interactions and cytotoxicity

2017 ◽  
Vol 41 (3) ◽  
pp. 1267-1283 ◽  
Author(s):  
Sellamuthu Kathiresan ◽  
Subramanian Mugesh ◽  
Jamespandi Annaraj ◽  
Maruthamuthu Murugan
Keyword(s):  
Cell Death ◽  
Cell Wall ◽  
Schiff Base ◽  
Protein Interactions ◽  
Apoptotic Cell ◽  
Vital Role ◽  
Mixed Ligand ◽  
Schiff Base Complexes ◽  
Antibacterial Mechanism

Four new mixed-ligand copper(ii) complexes display an antibacterial mechanism of cell death via cell-wall rupture and cytotoxicity via apoptotic cell death.

scholarly journals Constructing covalent organic frameworks in waterviadynamic covalent bonding

IUCrJ ◽  
2016 ◽  
Vol 3 (6) ◽  
pp. 402-407 ◽  
Author(s):  
Jayshri Thote ◽  
Harshitha Barike Aiyappa ◽  
Raya Rahul Kumar ◽  
Sharath Kandambeth ◽  
Bishnu P. Biswal ◽  
...  
Keyword(s):  
Schiff Base ◽  
Covalent Bonding ◽  
Porous Polymers ◽  
Porous Structures ◽  
Covalent Organic Frameworks ◽  
Synthetic Route ◽  
Dynamic Covalent Chemistry ◽  
Water Based ◽  
First Time ◽  
Reaction In Water

The formation of keto-enamine based crystalline, porous polymers in water is investigated for the first time. Facile access to the Schiff base reaction in water has been exploited to synthesize stable porous structures using the principles of Dynamic Covalent Chemistry (DCC). Most credibly, the water-based Covalent Organic Frameworks (COFs) possess chemical as well as physical properties such as crystallinity, surface area and porosity, which is comparable to their solvothermal counterparts. The formation of COFs in water is further investigated by understanding the nature of the monomers formed using hydroxy and non-hydroxy analogues of the aldehyde. This synthetic route paves a new way to synthesize COFs using a viable, greener route by utilization of the DCC principles in conjunction with the keto–enol tautomerism to synthesize useful, stable and porous COFs in water.

scholarly journals New Zn(II) complexes with N2S2 Schiff base ligands. Experimental and theoretical studies of the role of Zn(II) in disulfide thiolate-exchange

Polyhedron ◽  
2014 ◽  
Vol 71 ◽  
pp. 1-7 ◽  
Author(s):  
Mehdi Amirnasr ◽  
Maryam Bagheri ◽  
Hossein Farrokhpour ◽  
Kurt Joβ Schenk ◽  
Kurt Mereiter ◽  
...  
Keyword(s):  
Schiff Base ◽  
Theoretical Studies ◽  
Schiff Base Ligands ◽  
Experimental And Theoretical Studies ◽  
Role Of Zn

The application of a nickel(ii) Schiff base complex in water oxidation: the importance of nanosized materials

2018 ◽  
Vol 8 (15) ◽  
pp. 3954-3968 ◽  
Author(s):  
Hadi Feizi ◽  
Farshad Shiri ◽  
Robabeh Bagheri ◽  
Jitendra Pal Singh ◽  
Keun Hwa Chae ◽  
...  
Keyword(s):  
Schiff Base ◽  
Water Oxidation ◽  
Schiff Base Complex ◽  
Base Complex ◽  
Nanosized Materials ◽  
Ni Oxide

The role of Ni oxide in the electrocatalytic water oxidation of a nickel(ii) Schiff base (N,N′-bis (salicylidene) ethylenediamino nickel(ii)) is investigated.

Conducting metallophthalocyanine 2D covalent organic frameworks: the role of central metals in controlling π-electronic functions

2012 ◽  
Vol 48 (71) ◽  
pp. 8952 ◽  
Author(s):  
Xuesong Ding ◽  
Xiao Feng ◽  
Akinori Saeki ◽  
Shu Seki ◽  
Atsushi Nagai ◽  
...  
Keyword(s):  
Covalent Organic Frameworks
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