Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Khảo sát cấu trúc tinh thể, bề mặt Hirshfeld và các thuộc tính cơ học lượng tử của base Schiff thiophene đối xứng
Tóm tắt
Một hợp chất mới (1E,1′E)-N,N′-(ethane-1,2-diyl)bis(1-(5-nitrothiophen-2-yl)methanimine) [EDNM] đã được tổng hợp từ dẫn xuất thiophene với mục tiêu tạo ra ligand đa vị có khả năng hoạt động sinh học. EDNM được đặc trưng bằng các kỹ thuật quang phổ FT-IR, 1H và 13C NMR và UV–Vis, đồng thời được xác nhận bằng SCXRD. EDNM tinh thể trong hệ tinh thể đơn nghiêng với nhóm không gian P21/c với giá trị Z bằng 4 và các tham số của ô đơn vị a = 5.6540(3) Å, b = 17.9249(8) Å và c = 7.5077(5) Å. DFT đã được sử dụng cho các đánh giá lý thuyết, sử dụng phương pháp B3LYP với bộ cơ sở 6–311 + + G (d,p). Tối ưu hình học, phân tích dao động, NMR, hấp thụ điện tử, MEP, FMO, điện tích Mulliken và phân tích NBO đã được thực hiện, từ đó xác lập bản chất của các vị trí phản ứng, khoảng cách năng lượng băng và điện tích nguyên tử của EDNM. Các giá trị lý thuyết tương ứng tốt với các phát hiện thực nghiệm. Phân tích NBO tiết lộ các tương tác cho - nhận trong phân tử. Phân tích các chỉ số phản ứng toàn cầu cùng với chỉ số Fukui phác thảo một kế hoạch chi tiết về các vị trí phản ứng của phân tử, và nghiên cứu bề mặt Hirshfeld tiết lộ các tương tác giữa các phân tử trong cấu trúc tinh thể.
Từ khóa
#EDNM #dẫn xuất thiophene #ligand đa vị #hoạt động sinh học #cấu trúc tinh thể #phân tích NBO #bề mặt HirshfeldTài liệu tham khảo
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