Aggregation and Tunable Color Emission Behaviors of l ‐Glutamine‐Derived Platinum(II) Bipyridine Complexes by Hydrogen‐Bonding, π–π Stacking and Metal–Metal Interactions

2019 ◽  
Vol 25 (20) ◽  
pp. 5251-5258 ◽  
Author(s):  
Yeye Ai ◽  
Yongguang Li ◽  
Heidi Li‐Ki Fu ◽  
Alan Kwun‐Wa Chan ◽  
Vivian Wing‐Wah Yam
Keyword(s):  
Hydrogen Bonding ◽  
Metal Interactions ◽  
Π Stacking ◽  
Metal Metal ◽  
Color Emission

The mechanochemical conversion of potassium coordination polymer nanostructures to interpenetrated sodium coordination polymers with halogen bond, metal–carbon and metal–metal interactions

CrystEngComm ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 888-894 ◽  
Author(s):  
Ashkan Kianimehr ◽  
Kamran Akhbari ◽  
Jonathan White ◽  
Anukorn Phuruangrat
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Coordination Polymer ◽  
Coordination Polymers ◽  
Halogen Bond ◽  
Metal Interactions ◽  
Polymer Nanostructures ◽  
Hydrogen Bonding Interactions ◽  
Metal Metal

Two new Na and K coordination polymers with halogen bond, metallophilic and hydrogen bonding interactions were synthesized. These two compounds were synthesized sonochemically and solid-state conversions of them to each other were investigated.

Hierarchy of π-Stacking Determines the Conformational Preference of Bis-Squaraines

2020 ◽  
Author(s):  
Abhishek Singh ◽  
Reman K. Singh ◽  
G Naresh Patwari
Keyword(s):  
Hydrogen Bonding ◽  
Rational Design ◽  
Biological Molecules ◽  
Conformational Space ◽  
X Ray Crystallography ◽  
Simple Strategy ◽  
Induced Folding ◽  
Π Stacking ◽  
Varying Length ◽  
Dynamics Simulations

The rational design of conformationally controlled foldable modules can lead to a deeper insight into the conformational space of complex biological molecules where non-covalent interactions such as hydrogen bonding and π-stacking are known to play a pivotal role. Squaramides are known to have excellent hydrogen bonding capabilities and hence, are ideal molecules for designing foldable modules that can mimic the secondary structures of bio-molecules. The π-stacking induced folding of bis-squaraines tethered using aliphatic primary and secondary-diamine linkers of varying length is explored with a simple strategy of invoking small perturbations involving the length linkers and degree of substitution. Solution phase NMR investigations in combination with molecular dynamics simulations suggest that bis-squaraines predominantly exist as extended conformations. Structures elucidated by X-ray crystallography confirmed a variety of folded and extended secondary conformations including hairpin turns and 𝛽-sheets which are determined by the hierarchy of π-stacking relative to N–H···O hydrogen bonds.

Hierarchy of π-Stacking Determines the Conformational Preference of Bis-Squaraines

2020 ◽  
Author(s):  
Abhishek Singh ◽  
Reman K. Singh ◽  
G Naresh Patwari
Keyword(s):  
Hydrogen Bonding ◽  
Rational Design ◽  
Biological Molecules ◽  
Conformational Space ◽  
X Ray Crystallography ◽  
Simple Strategy ◽  
Induced Folding ◽  
Π Stacking ◽  
Varying Length ◽  
Dynamics Simulations

The rational design of conformationally controlled foldable modules can lead to a deeper insight into the conformational space of complex biological molecules where non-covalent interactions such as hydrogen bonding and π-stacking are known to play a pivotal role. Squaramides are known to have excellent hydrogen bonding capabilities and hence, are ideal molecules for designing foldable modules that can mimic the secondary structures of bio-molecules. The π-stacking induced folding of bis-squaraines tethered using aliphatic primary and secondary-diamine linkers of varying length is explored with a simple strategy of invoking small perturbations involving the length linkers and degree of substitution. Solution phase NMR investigations in combination with molecular dynamics simulations suggest that bis-squaraines predominantly exist as extended conformations. Structures elucidated by X-ray crystallography confirmed a variety of folded and extended secondary conformations including hairpin turns and 𝛽-sheets which are determined by the hierarchy of π-stacking relative to N–H···O hydrogen bonds.

The 1-Naphthol Dimer and Its Surprising Preference for π–π Stacking over Hydrogen Bonding

2019 ◽  
Vol 10 (11) ◽  
pp. 2836-2841 ◽  
Author(s):  
Nathan A. Seifert ◽  
Arsh S. Hazrah ◽  
Wolfgang Jäger
Keyword(s):  
Hydrogen Bonding ◽  
Π Stacking

scholarly journals Heterobimetallic lanthanide‐coinage metal compounds featuring possible metal‐metal interactions in the exited state

2021 ◽  
Author(s):  
Peter Werner Roesky ◽  
Milena Dahlen ◽  
Niklas Reinfandt ◽  
Chengyu Jin ◽  
Michael T. Gamer ◽  
...  
Keyword(s):  
Metal Compounds ◽  
Coinage Metal ◽  
Metal Interactions ◽  
Metal Metal

Tuning metal–metal interactions for cooperative small molecule activation

2021 ◽  
Author(s):  
Qiuran Wang ◽  
Sam H. Brooks ◽  
Tianchang Liu ◽  
Neil C. Tomson
Keyword(s):  
Small Molecule ◽  
Small Molecule Activation ◽  
Feature Article ◽  
Metal Interactions ◽  
Recent Advances ◽  
Metal Metal

This Feature Article describes recent advances in the design of multinucleating ligands that support small molecule activation chemistry.

scholarly journals Effect of Metal−Metal Interactions on Electron Transfer:  an STM Study of One-Dimensional Metal String Complexes

2004 ◽  
Vol 108 (3) ◽  
pp. 959-964 ◽  
Author(s):  
Shu-Yi Lin ◽  
I-Wen Peter Chen ◽  
Chun-hsien Chen ◽  
Ming-Hsun Hsieh ◽  
Chen-Yu Yeh ◽  
...  
Keyword(s):  
Electron Transfer ◽  
One Dimensional ◽  
Metal Interactions ◽  
Metal Metal
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