TY - JOUR T1 - CALCULATION OF HOMA AND BIRD AROMATICITY INDICES, NLO AND NBO PROPERTIES OF BENIDIPINE TT - BENİDİPİNİN HOMA VE BIRD AROMATİKLİK ENDEKSLERİ, NLO VE NBO ÖZELLİKLERİNİN HESAPLANMASI AU - Genç, Fatma AU - Kandemirli, Fatma AU - Tuncel, Derya Hilal PY - 2024 DA - December Y2 - 2024 DO - 10.55071/ticaretfbd.1480229 JF - İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi PB - İstanbul Ticaret Üniversitesi WT - DergiPark SN - 1305-7820 SP - 373 EP - 389 VL - 23 IS - 46 LA - en AB - Benidipine hydrochloride, being the derivate of 1,4-dihydropyridine is a calcium channel blocker antihypertensive drug. The aromaticity, natural bond orbital (NBO) and Nonlinear Optical (NLO) parameters properties of Benidipine (BEN) and BENHCl compounds were theoretically investigated using density functional theory (DFT) electronic structure method. Among the values of common aromaticity indices, the Harmonic Oscillator Aromaticity Model (HOMA) and BIRD's (Aromaticity Index) for electronic delocalization show that the aromaticity of the nitrophenyl group is higher in BEN and BENHCl compounds, and also the aromaticity in the gas phase is higher than that in water, octanol and DMF phase. In compound BEN, it was observed that as the dielectric constant of the medium increased, the aromaticity difference increased slightly. In the compound BEN, the correlation coefficient between HOMA values and aromatic fluctuation index (FLU), para delocalization index (PDI) and para-linear response (PLR) for the nitrophenyl group is higher than that the phenyl group. Donor-acceptor transitions, stabilization energies, intramolecular charge transfer were determined by natural population analyses. NLO parameters such as dipole moment, polarisibility and first order hyperpolarizability values of the BEN and BENHCl compound were also studied. KW - Benidipidine KW - HOMA KW - BIRD KW - natural bond orbital KW - NLO N2 - 1,4-dihidropiridin'in türevi olan benidipin hidroklorür, bir kalsiyum kanal bloker antihipertansif ilaçtır. Benidipin (BEN) ve BENHCl bileşiklerinin aromatiklik, doğal bağ orbital (NBO) ve Doğrusal Olmayan Optik (NLO) parametrelerinin özellikleri, yoğunluk fonksiyonel teorisi (DFT) elektronik yapı yöntemi kullanılarak teorik olarak araştırıldı. Ortak aromatiklik indeksi değerlerinden Harmonik Osilatör Aromatiklik Modeli (HOMA) ve elektronik delokalizasyon için BIRD's (Aromatiklik İndeksi), BEN ve BENHCl bileşiklerinde nitrofenil grubunun aromatikliğinin daha yüksek olduğunu, ayrıca gaz fazındaki aromatik de su, oktanol ve DMF fazındakinden daha yüksektir. BEN bileşiğinde ortamın dielektrik sabiti arttıkça aromatiklik farkının bir miktar arttığı gözlendi. 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