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A novel one pot and solvent-free synthesis of 2,9,16,23-tetrachloro metal(II)phthalocyanines in microwave using monosodium salt of 4-chlorophthalate as starting material is described. This method in comparison to conventional route offers high yields (75Á92%), eliminates the use of toxic organic solvents, reduces multistep synthesis to one-step, reaction temperature from 190 to 1208C, and reaction time from 5Á6 hours to 5 minutes.

Construction of an effective heterojunction for unimpeded flow of photogenerated charges and their prolonged separation is imperative for environmental photocatalysis. Herein, we have designed an efficient magnetic ZnO/BiVO4 type‐II heterostructure, which was employed for proficient degradation of persistent methyl violet dye with an efficiency of 97.6% in 90 min and a hazardous organic pollutant, namely, bisphenol A. UV‐DRS and photoluminescence studies demonstrated that the fabricated nanocomposite exhibited effective light absorption and prolonged charge separation, thereby resulting in high photocatalytic efficacy under visible light irradiation. The efficacy of developed magnetic ZnO/BiVO4 was also compared with pristine BiVO4 and undoped magnetic ZnO, which indicated that the constructed heterostructure displayed approximately threefold and sixfold activity in contrast with bare BiVO4 and undoped magnetic ZnO nanoparticles, respectively. Radical trapping studies, ESR analysis along with GC‐MS analysis were conducted to elucidate the mechanistic pathway during the photodegradation process. This work provides a rational technical approach and research ideas for photocatalytic degradation of harmful organic pollutants in an environment‐friendly manner by employing energy‐efficient LEDs. Besides, good recyclability of catalyst makes it a promising candidate for large‐scale applications.

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Noscapine has anti-cancerous properties as it ceases cell division at metaphase stage. It is popular for it's anti-antitussive properties. Various derivatives of noscapine have significant potential to act as a anticancerous ability than the parent molecule. As noscapine has low toxicity, high bioactivity and good availability, it is being explored extensively. Poor solubility of noscapine has somewhat restricted the use of noscapine. Therefore, authors aim to study the nature of noscapine in different solvents using computational methods or theoretically. Density functional theory (DFT) calculations and time-dependent density functional theory (TD-DFT) calculations were performed to explore the electronic structure, infrared spectrum, nuclear magnetic resonance spectrum and ultraviolet-visible spectrum of noscapine. In dimethyl sulfoxide (DMSO), noscapine had a minimum or least free energy of À8.99 Â 10 5 kcal/ mol and a maximum dipole moment of 4.183 debye (D), followed by 2.942 D in chloroform. Physiochemical descriptors indicated that noscapine would interact with other molecules when DMSO or chloroform are taken as a solvent, as its polarizability and acidic character is more in DMSO and chloroform. The ability of noscapine to consume free radicles is also predicted to increase in DMSO. A red shift was observed when noscapine was taken in polar solvents as the energy gap between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) was reduced. The authors also performed linear regression analysis on infrared and carbon-13 nuclear magnetic resonance ( 13 C-NMR) spectra obtained from computational and experimental methods to check the correlation in their results.