A novel low-molecular-mass gelator with a redox active ferrocenyl group: tuning gel formation by oxidation.
A novel low-molecular-mass gelator containing a redox-active ferrocenyl group, cholesteryl glycinate ferrocenoylamide (CGF), was intentionally designed and prepared. It was demonstrated that the gelator gels 13 out of the 45 solvents tested. Scanning electron microscopy (SEM) measurements revealed that the gelator self-assembled into different supramolecular network structures in different gels. Chemical oxidation of the ferrocenyl residue resulted in phase transition of the gel from gel state to solution state. FTIR and (1)H NMR spectroscopy studies revealed that hydrogen bonding between the gelator molecules in the gel was one of the main driving forces for the formation of the gels.
Liu
Jing
J
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, People's Republic of China.
Yan
Junlin
J
Yuan
Xuanwei
X
Liu
Kaiqiang
K
Peng
Junxia
J
Fang
Yu
Y
D000085:Acetates / Q000737:chemistry; D002563:Cerium / Q000737:chemistry; D002784:Cholesterol / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D005296:Ferrous Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D005782:Gels / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards; D000075163:Metallocenes; D008855:Microscopy, Electron, Scanning / Q000379:methods; D008970:Molecular Weight; D009566:Nitrates / Q000737:chemistry; D016877:Oxidants / Q000737:chemistry; D010084:Oxidation-Reduction; D010316:Particle Size; D012015:Reference Standards; D012997:Solvents / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D013499:Surface Properties
D000085:Acetates; D005296:Ferrous Compounds; D005782:Gels; D000075163:Metallocenes; D009566:Nitrates; D016877:Oxidants; D012997:Solvents; C527383:cholesteryl glycinate ferrocenoylamide; C032786:cerium nitrate; D002563:Cerium; C007650:ethyl acetate; D002784:Cholesterol; C006568:ammonium nitrate; C004998:ferrocene