scholarly journals Oxygen chemisorption/desorption in a reversible single-crystal-to-single-crystal transformation

2014 ◽  
Vol 5 (10) ◽  
pp. 4017-4025 ◽  
Author(s):  
Jonas Sundberg ◽  
Lisa J. Cameron ◽  
Peter D. Southon ◽  
Cameron J. Kepert ◽  
Christine J. McKenzie
Keyword(s):  
Single Crystal ◽  
Single Molecule ◽  
Solid Phase ◽  
Crystal Transformation ◽  
Oxygen Chemisorption

A compound that can reversibly chemisorb O2 in the solid phase undergoes several consecutive single-crystal-to-single-crystal transformations involving the cleavage of four bonds and the creation of four new bonds, in one single molecule.

Cyclic OFF/Part/ON switching of single-molecule magnet behaviours via multistep single-crystal-to-single-crystal transformation between discrete Fe(ii)–Dy(iii) complexes

2018 ◽  
Vol 54 (77) ◽  
pp. 10886-10889 ◽  
Author(s):  
Wen-Bin Chen ◽  
Yan-Cong Chen ◽  
Guo-Zhang Huang ◽  
Jun-Liang Liu ◽  
Jian-Hua Jia ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Molecule ◽  
Single Molecule Magnet ◽  
Crystal Transformation

Multistep single-crystal-to-single-crystal transformation modulates OFF/Part/On single-molecule magnet behaviours for three discrete Fe(ii)–Dy(iii) complexes.

scholarly journals Reversible on–off switching of both spin crossover and single-molecule magnet behaviours via a crystal-to-crystal transformation

2018 ◽  
Vol 9 (41) ◽  
pp. 7986-7991 ◽  
Author(s):  
Dong Shao ◽  
Le Shi ◽  
Lei Yin ◽  
Bao-Lin Wang ◽  
Zhen-Xing Wang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Single Molecule ◽  
Spin Crossover ◽  
Single Molecule Magnet ◽  
Crystal Transformation

A molecule complex exhibiting reversible on–off switching between spin crossover and single-molecule magnet behaviours via a single-crystal-to-single-crystal transformation is reported.

Single crystal to single crystal transformation of spin-crossover coordination polymers from 3D frameworks to 2D layers

2021 ◽  
Vol 9 (15) ◽  
pp. 5082-5087
Author(s):  
Yu Gong ◽  
Wang-Kang Han ◽  
Hui-Shu Lu ◽  
Qing-Tao Hu ◽  
Huan Tu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Ligand Exchange ◽  
Spin Crossover ◽  
Metal Organic Frameworks ◽  
Crystal Transformation ◽  
Metal Organic

New Hofmann-type metal–organic frameworks display rare and complete ligand exchange induced single crystal to single crystal transformations from 3D frameworks to 2D layers, accompanied by magnetic properties transition from two-step SCO behavior to hysteretic SCO behavior.

scholarly journals Solid-State Conformational Flexibility at Work: Energetic Landscape of a Single Crystal-to-Single Crystal Transformation in a Cyclic Hexapeptoid

2021 ◽  
Vol 21 (2) ◽  
pp. 897-907
Author(s):  
Giovanni Pierri ◽  
Marta Corno ◽  
Eleonora Macedi ◽  
Maria Voccia ◽  
Consiglia Tedesco
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Conformational Flexibility ◽  
Crystal Transformation

Water molecule induced reversible single-crystal-to-single-crystal transformation between two trinuclear Fe(ii) complexes with different spin crossover behaviour

2018 ◽  
Vol 47 (12) ◽  
pp. 4307-4314 ◽  
Author(s):  
Wen-Bin Chen ◽  
Yan-Cong Chen ◽  
Meng Yang ◽  
Ming-Liang Tong ◽  
Wen Dong
Keyword(s):  
Water Molecule ◽  
Single Crystal ◽  
Spin Crossover ◽  
Crystal Transformation

Water molecule induced reversible single-crystal-to-single-crystal transformation between two trinuclear Fe(ii) complexes with different spin crossover behaviour.

scholarly journals Voltammetry and molecular assembly of G-quadruplex DNAzyme on single-crystal Au(111)-electrode surfaces – hemin as an electrochemical intercalator

2016 ◽  
Vol 193 ◽  
pp. 99-112 ◽  
Author(s):  
Ling Zhang ◽  
Jens Ulstrup ◽  
Jingdong Zhang
Keyword(s):  
Single Crystal ◽  
Single Molecule ◽  
Electrode Surface ◽  
Molecular Assembly ◽  
Electrode Surfaces ◽  
Potential Control ◽  
G Quadruplex ◽  
Tunnelling Microscopy ◽  
Dna Quadruplexes

DNA quadruplexes (qs) are a class of “non-canonical” oligonucleotides (OGNs) composed of stacked guanine (G) quartets stabilized by specific cations. Metal porphyrins selectively bind to G-qs complexes to form what is known as DNAzyme, which can exhibit peroxidase and other catalytic activity similar to heme group metalloenzymes. In the present study we investigate the electrochemical properties and the structure of DNAzyme monolayers on single-crystal Au(111)-electrode surfaces using cyclic voltammetry and scanning tunnelling microscopy under electrochemical potential control (in situ STM). The target DNAzyme is formed from a single-strand OGN with 12 guanines and iron(iii) porphyrin IX (hemin), and assembles on Au(111) through a mercapto alkyl linker. The DNAzyme monolayers exhibit a strong pair of redox peaks at 0.0 V (NHE) at pH 7 in acetate buffer, shifted positively by about 50 mV compared to free hemin weakly physisorbed on the Au(111)-electrode surface. The voltammetric hemin signal of DNAzyme is enhanced 15 times compared with that of hemin adsorbed directly on the Au(111)-electrode surface. This is indicative of both the formation of a close to dense DNAzyme monolayer and that hemin is strongly bound to the immobilized 12G-qs in well-defined orientation favorable for interfacial ET with a rate constant of 6.0 ± 0.4 s−1. This is supported by in situ STM which discloses single-molecule G-quartet structures with a size of 1.6 ± 0.2 nm.

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