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• W2041320411 endingPage "13575" @default.
• W2041320411 startingPage "13566" @default.
• W2041320411 abstract "Abstract The synthesis of a series of Ni II –salen‐based complexes with the general formula of [Ni(H 2 L)] (H 4 L=R 2 ‐ N , N ′‐bis[R 1 ‐5‐(4′‐benzoic acid)salicylidene]; H 4 L1: R 2 =2,3‐diamino‐2,3‐dimethylbutane and R 1 =H; H 4 L2: R 2 =1,2‐diaminoethane and R 1 = tert ‐butyl and H 4 L3: R 2 =1,2‐diaminobenzene and R 1 = tert ‐butyl) is presented. Their electronic structure and self‐assembly was studied. The organic ligands of the salen complexes are functionalized with peripheral carboxylic groups for driving molecular self‐assembly through hydrogen bonding. In addition, other substituents, that is, tert ‐butyl and diamine bridges (2,3‐diamino‐2,3‐dimethylbutane, 1,2‐diaminobenzene or 1,2‐diaminoethane), were used to tune the two‐dimensional (2D) packing of these building blocks. Density functional theory (DFT) calculations reveal that the spatial distribution of the LUMOs is affected by these substituents, in contrast with the HOMOs, which remain unchanged. Scanning tunneling microscopy (STM) shows that the three complexes self‐assemble into three different 2D nanoarchitectures at the solid–liquid interface on graphite. Two structures are porous and one is close‐packed. These structures are stabilized by hydrogen bonds in one dimension, while the 2D interaction is governed by van der Waals forces and is tuned by the nature of the substituents, as confirmed by theoretical calculations. As expected, the total dipolar moment is minimized" @default.
• W2041320411 created "2016-06-24" @default.
• W2041320411 creator A5025374486 @default.
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• W2041320411 date "2014-09-15" @default.
• W2041320411 modified "2023-09-25" @default.
• W2041320411 title "Tailoring the Structure of Two‐Dimensional Self‐Assembled Nanoarchitectures Based on Ni^II–Salen Building Blocks" @default.
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• W2041320411 doi "https://doi.org/10.1002/chem.201403169" @default.
• W2041320411 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25225027" @default.
• W2041320411 hasPublicationYear "2014" @default.
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