Research on Hydrogen Bonding Interaction of Trigonal Schiff Base Compound with Barbituric Acid in Organized Molecular Films

2011 ◽  
Vol 694 ◽  
pp. 528-532
Author(s):  
Ti Feng Jiao ◽  
Jing Xin Zhou

In order to investigate the supramolecular assembly and intermolecular hydrogen bonding of special amphiphile, a trigonal Schiff base compound was designed and synthesized, and it supramolecular assembly and interaction properties were investigated by spectral measurements. It was found that the Schiff base compound can be spread on water surface to form stable monolayer. When it was spread on the subphase containing barbituric acid, it can show hydrogen bonding interaction with barbituric acid. Due to the directionality and strong matching of hydrogen bond, two barbituric acid molecules can be encapsulated into intramolecular space of the trigonal Schiff base compound through intermolecular H-bonding to form a 1:2 complex. A rational complex mode was proposed.

2010 ◽  
Vol 160-162 ◽  
pp. 590-593 ◽  
Author(s):  
Ti Feng Jiao ◽  
Juan Zhou ◽  
Li Kui Huang ◽  
Jing Xin Zhou

In order to investigate the supramolecular assembly and intermolecular hydrogen bonding of special amphiphiles, two bolaform amphiphilic Schiff bases (GN1 and GN2) with different hydrophilic spacers were designed, and their supramolecular assembly and interaction properties were investigated by spectral measurements. It was found that both the Schiff bases showed hydrogen bonding interaction with barbituric acid. In addition, it was interesting to note that the spacer groups of the molecules had effect on the molecular ratio in the hydrogen-bonded complexes. Due to the directionality and strong matching of hydrogen bond, one barbituric acid molecule can be encapsulated into the intramolecular area of GN1, while two barbituric acid molecules were trapped into the GN2 molecule through intermolecular H-bonds for GN2 due to the long spacer and flexible structure. A rational complex mode was proposed.


2012 ◽  
Vol 236-237 ◽  
pp. 815-818
Author(s):  
Ti Feng Jiao ◽  
Jing Xin Zhou

In order to investigate the supramolecular assembly and coordination interaction of special amphiphile, a trigonal Schiff base compound with long alkyl chains was designed and synthesized, and its supramolecular assembly and interaction properties were investigated by spectral and morphological measurements. It was found that the Schiff base compound can be spread on water surface to form stable monolayer. When on the Zn(II) ions subphase, an in situ coordination can occur for all ligands. As a result, a 1:2 complex was formed for the trigonal chain Schiff base with Zn(II) ions through the coordination interaction. Due to the directionality and strong matching of coordination, two Zn(II) ions can be encapsulated into intramolecular space of the trigonal Schiff base compound.


2011 ◽  
Vol 356-360 ◽  
pp. 48-51
Author(s):  
Qi Tong ◽  
Ti Feng Jiao

In order to investigate the intermolecular hydrogen bonding of special amphiphiles, two bolaform amphiphilic Schiff bases (GN1 and GN2) with different hydrophilic spacers were designed, and their interaction with barbituric acid were tested by liquid chromatography. The chromatographic properties showed that both the Schiff bases showed hydrogen bonding interaction with barbituric acid. In addition, the influence of various detectors was also studied on both cases. Experimental results show that the test with FLD showed better determination than other detectors. It is proposed that due to the directionality and strong matching of hydrogen bond, one barbituric acid molecule can be encapsulated into the intramolecular area of GN1, while two barbituric acid molecules were trapped into the GN2 molecule through intermolecular H-bonds for GN2 due to the long spacer and flexible structure. A rational complex mode was proposed.


2012 ◽  
Vol 236-237 ◽  
pp. 801-805
Author(s):  
Ti Feng Jiao ◽  
Qi Tong ◽  
Jian Liu

In order to investigate the intermolecular hydrogen bonding of special amphiphiles, a series of bolaform amphiphilic Schiff bases (abbreviated as SCn) with different hydrophobic spacers were designed, and their interaction with barbituric acid were tested by spectra and liquid chromatography. The chromatographic properties showed that all the Schiff bases showed hydrogen bonding interaction with barbituric acid. In addition, the influence of various detectors was also studied on both cases. Experimental results show that the test with VWD detector showed better determination than FLD detector.


2013 ◽  
Vol 69 (11) ◽  
pp. o1714-o1714
Author(s):  
Lei Li ◽  
Suyuan Zeng

The title solvated Schiff base compound, C25H26N2O4·CH3CN, possesses an O2N2donor set affording a potentially tetradentate metal complex ligand. The central ring makes dihedral angles of 6.7 (3) and 48.4 (2)° with the pendant rings. Intramolecular N—H...O hydrogen-bonding interactions are observed.


2015 ◽  
Vol 71 (11) ◽  
pp. o886-o887 ◽  
Author(s):  
Ryoji Moriwaki ◽  
Takashiro Akitsu

The title chiral photochromic Schiff base compound, C21H18BrN3O, was synthesized from (R)-(+)-1-(4-bromophenyl)ethylamine and the salicylaldehyde of an azobenzene derivative. The molecule corresponds to the phenol–imine tautomer, the C=N and N—C bond distances being 1.285 (3) and 1.470 (3) Å, respectively. The diazenyl group adopts atransform, with an N=N distance of 1.256 (3) Å. The hydroxy group is involved in intramolecular O—H...N hydrogen bonding. In the crystal, C—H...π interactions consolidate the crystal packing of one-dimensional chains, which exhibits short intermolecular Br...C contacts of 3.400 (3) Å.


2012 ◽  
Vol 236-237 ◽  
pp. 810-814
Author(s):  
Ti Feng Jiao ◽  
Jing Xin Zhou

In order to investigate the chiral interfacial assembly of special amphiphile, a trigonal Schiff base compound with long alkyl chains was designed and synthesized, and its supramolecular assembly and interaction properties were investigated by spectral and morphological measurements. Condensed monolayers were obtained on pure water surface, in which flat and uniform domains were obtained for the monolayers. When an anionic tetrakis(4-sulfonatonphenyl)porphine (TPPS) was added into an acidic subphase, an in situ complex formation between the trigonal amphiphile and TPPS occurred. The complex monolayers were transferred onto solid substrate and TPPS existed as J-aggregate and J-aggregate in the complex films. Due to the multisited positive charges in the spacer on acidic subphase, the complex films of trigonal amphiphile with TPPS appeared as short nanorod structures and formed two-dimensional (2D) conglomerate chiral domains.


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