ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis and characterization for new Zn(II) complexes and their optimizing fertilization performance in planting corn hybrid

Ismail Althagafi, Moataz Morad, Aisha Y. Al-dawood, Naema Yarkandy, Hanadi A. Katouah, Aisha S. Hossan, Abdalla M. Khedr, Nashwa M. El-Metwaly, and Farag Ibraheem

Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia

E-mail: n_elmetwaly00@yahoo.com

Received: 25 July 2020  Accepted: 19 November 2020

Abstract:

Novel Zn(II)–benzohydrazide complexes have been synthesized using Zn(NO₃)₂·6H₂O salt. All new synthesises were investigated by available analytical and spectral tools to demonstrate their formulae. Binuclear complexes were proposed with all ligands through pentadentate mode of bonding. Octahedral geometry was the only structural form proposed for complexes. Benzohydrazide derivatives coordinate by the same mode, which point to negligible effect of p-substituents on donor site environment. This mode was verified basically by IR and ¹H, ¹³C NMR spectra. According to XRD patterns, crystallite particles of complexes were appeared in nanosized range. Such feature is preferable in variable application fields. Molecular modeling and molecular docking were interested in this study to strengthen experimental studies. One of these complexes [Zn(II)–H₂L²] was examined to be an additive optimizing the performance of traditional fertilizer (NH₄NO₃) in planting corn hybrid. This complex significantly improved components of photosynthetic carbon assimilation as photosynthetic pigments, sucrose, and soluble sugars. Interestingly, the applied complex induced responses, which were consistently higher than those treated by traditional fertilizer (NH₄NO₃). Therefore, these results highlight the promising behavior of Zn(II)–H₂L² complex in planting improvement.

Keywords: Zn(II) complexes; DFT/B3LYP; Molecular docking; Fertilization optimizer; Photosynthesis

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-020-01440-7

Chemical Papers 75 (5) 2121–2133 (2021)