73868-56-1Relevant academic research and scientific papers
Solvent clathrate driven dynamic stereomutation of a supramolecular polymer with molecular pockets
Kulkarni, Chidambar,Korevaar, Peter A.,Bejagam, Karteek K.,Palmans, Anja R.A.,Meijer,George, Subi J.
, p. 13867 - 13875 (2017)
Control over the helical organization of synthetic supramolecular systems is intensively pursued to manifest chirality in a wide range of applications ranging from electron spin filters to artificial enzymes. Typically, switching the helicity of supramole
Synthesis and properties of 5,10,15,20-tetrakis[4-(3,5-dioctyloxybenzamido) phenyl]porphyrin and its metal complexes
Lian, Wenhui,Sun, Yuanyuan,Wang, Binbin,Shan, Ning,Shi, Tongshun
, p. 335 - 348 (2012/05/20)
A novel 5,10,15,20-tetrakis[4-(3,5-dioctyloxybenzamido)phenyl]-porphyrin and its transition metal complexes are reported in this paper. Their molecular structures were characterized by elemental analysis as well as IR, 1H-NMR and UV-Vis spectroscopy. Their spectroscopic properties were studied by Raman and fluorescence spectroscopy, and X-ray photoelectron spectroscopy (XPS). The fluorescence quantum yields were measured at room temperature. The fluorescence intensity of the porphyrin ligand was stronger than the intensity of the complexes. There were large differences in the Raman spectrum of the porphyrin ligand and those of the metal complexes due to changes in the symmetry of porphyrin plane. In the XPS spectra, the replacement of the free-base protons by a metal ion to form the metalloporphyrin not only increases the symmetry of the molecule, but also introduces an electron withdrawing group into the center of the porphyrin ligand, which increases the N1S binding energy.
Liquid crystalline behavior of tetraaryl derivatives of benzo[c]cinnoline, tetraazapyrene, phenanthrene, and pyrene: The effect of heteroatom and substitution pattern on phase stability
Sienkowska, Monika J.,Farrar, John M.,Zhang, Fan,Kusuma, Sharat,Heiney, Paul A.,Kaszynski, Piotr
, p. 1399 - 1411 (2008/02/07)
A series of closely related tetrasubstituted derivatives of benzo[c]cinnoline (1), tetraazapyrene (2), phenanthrene (3), and pyrene (4) were investigated for their mesogenic properties using thermal, optical, spectroscopic, and powder XRD analyses. Only three 3,4-dioctyloxyphenyl derivatives exhibited mesogenic properties. Substitution of N for CH (3 → 1 and 4 → 2 pairs) and also increase of the core element size (1 → 2 and 3 → 4 pairs) significantly increases the mesophase stability. The findings and observed trends were rationalized by analysis of conformational properties which included calculation of the planarization energy, and modeling of aliphatic chain density and fill fractions. MO calculations showed that the tetraaza derivative 2c is significantly electron deficient and suitable for electron conductive materials. The Royal Society of Chemistry.
Synthesis of oligopyridinic scaffolds from amido substituted phenyl rings for extended hydrogen bonding
Pickaert, Guillaume,Ziessel, Raymond
, p. 2716 - 2726 (2007/10/03)
A series of phenanthroline, terpyridine and pyridino-oxazoline ligands combining a 4-methyl-3,5-diacylaminophenyl platform and two dialkoxyphenyl groups has been prepared by a linear multistep protocol. The synthetic potential of 4-methyl-3,5-(diacyl-amin
Tuning organogels and mesophases will phenanthroline ligands and their copper complexes by inter- to intramolecular hydrogen bonds
Ziessel, Raymond,Pickaert, Guillaume,Camerel, Franck,Donnio, Bertrand,Guillon, Daniel,Cesario, Michele,Prange, Thierry
, p. 12403 - 12413 (2007/10/03)
A novel family of highly functionalized molecules consisting of a central 4-methyl-3,5-diacylaminobenzene platform linked in close proximity to the methyl group by two lateral aromatic rings each equipped with two long alkoxy chains has been rationally de
