Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.73-22-3, Name is H-Trp-OH, SMILES is N[C@@H](CC1=CNC2=CC=CC=C12)C(O)=O, belongs to catalyst-ligand compound. In a document, author is Zhang, Zi-You, introduce the new discover, Name: H-Trp-OH.
Efficient MO Dye Degradation Catalyst of Cu(I)-Based Coordination Complex from Dissolution-Recrystallization Structural Transformation
Methyl orange (MO) is a main organic water pollutants that has been attracted a lot of attention; it can be degraded under photoirradiation in the presence of H2O2. Herein, we developed two Cu(I)-based coordination complexes (named H-2(Cu4Br6)[(Cu4Br3)(TTTMB)(2)(H2O)](2) (ZZY-2) and (Cu5Br6)(Cu6Br9)[Cu3Br(TTTMB)2] (ZZY-3)), which could degrade the MO dye in the presence of H2O2 with or without photoirradiation (TTTMB = 1,3,5-tris(1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene). Three-dimensional (3D) frameworks ZZY-2 and ZZY-3 were based on the molecule cage [Cu-3(TTTMB)(2)] with the homochiral (-CuBrCu-)n triple-stranded helical chain and multinuclear Cu5Br6 and Cu6Br9 units, respectively, which could be obtained via the dissolutionrecrystallization structural transformation (DRST) from two-dimensional (2D) network ZZY-1 ([Cu-3(TTTMB)(2)(H2O)(6)Cl-6]center dot 2H(2)O). The addition of CuBr2 and the amount of HCOOH were decisive for the DRST, where the formation of a CuN coordination bond between the free 2-positional nitrogen atom and Cu(II) was the initiator for DRST. ZZY-2 and ZZY-3 had superior chemical stability, which could maintain the structures after three cycles of degradation reactions. MO degradation catalyzed by ZZY-2 and ZZY-3 could undergo a Fenton-like reaction to produce the active species OH in the presence of H2O2. No requirement of photoirradiation for ZZY-2 and ZZY-3 to degrade MO provided more practical meaning to sewage treatment. Cu(II)-based ZZY-4 was also obtained as ZZY-1 in the presence of HNO3, which demonstrated the influence of acid on the structure of nitrogen-based ligands. ZZY-4 has shown no capacity to degrade MO, which indicated that the oxidation of Cu(I) by H2O2 could be the key step to initiate the MO degradation.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 73-22-3 is helpful to your research. Name: H-Trp-OH.
Reference:
Metal catalyst and ligand design,
,Ligand Template Strategies for Catalyst Encapsulation – NCBI