Chemistry, like all the natural sciences, begins with the direct observation of nature— in this case, of matter.7048-04-6, Name is H-Cys-OH.HCl.H2O, SMILES is O=C(O)[C@@H](N)CS.[H]Cl.[H]O[H], belongs to amides-buliding-blocks compound. In a document, author is Chakraborty, Saptarshi, introduce the new discover, COA of Formula: C3H10ClNO3S.
Synthesis and Photophysical Properties of Light-Harvesting Gold Nanoclusters Fully Functionalized with Antenna Chromophores
The development of efficient light-harvesting systems is important to understand the key aspects of solar-energy conversion processes and to utilize them in various photonic applications. Here, atomically well-defined gold nanoclusters are reported as a new platform to fabricate artificial light-harvesting systems. An efficient amide coupling method is developed to synthesize water-soluble Au-22 clusters fully protected with pyrene chromophores by taking advantage of their facile phase-transfer reaction. The synthesized Au-22 clusters with densely packed 18 pyrene chromophores (Au-22-PyB18) exhibit triple-emission in blue, green, and red wavelength regions arising respectively from pyrene monomer, pyrene excimer, and Au-22 emission, producing bright white light emission together. The photoluminescence of Au-22 is enhanced by more than tenfold, demonstrating that pyrenes at the periphery efficiently channel the absorbed energy to the luminescent Au-22 at the center. A combination of femtosecond transient absorption and anisotropy measurements of Au-22-PyB18 explicitly reveals three main decay components of 220 fs, 3.5 ps, and 160 ps that can be assigned to energy migration between pyrenes and energy transfer processes from pyrene monomer and excimer to the central Au-22, respectively.
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 7048-04-6 is helpful to your research. COA of Formula: C3H10ClNO3S.