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Organic Nanostructures with Controllable Morphology Fabricated from Ferrocene–Porphyrin Derivatives: Effect of Metal–Ligand Coordination on the Morphology, Dimensions, and Semiconductor Properties of Self‐Assembled Nanostructures
Author(s) -
Zhu Peihua,
Ma Pan,
Wang Yan,
Wang Quanbo,
Zhao Xian,
Zhang Xiaomei
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100421
Subject(s) - chemistry , porphyrin , ferrocene , nickel , x ray photoelectron spectroscopy , nanostructure , intermolecular force , self assembly , ligand (biochemistry) , metal , crystallography , fourier transform infrared spectroscopy , absorption spectroscopy , molecule , photochemistry , nanotechnology , electrochemistry , chemical engineering , organic chemistry , materials science , biochemistry , receptor , electrode , engineering , physics , quantum mechanics
Two new ferrocene–porphyrin derivatives, namely 5,15‐bis(ferrocenyl)‐10,20‐bis(4‐nitrophenyl)porphyrin ( 1 ) and its nickel congener 5,15‐bis(ferrocenyl)‐10,20‐bis(4‐nitrophenyl)porphyrinatonickel ( 2 ) have been designed, synthesized, and characterized. Their self‐assembly properties have been comparatively studied by electronic absorption and FTIR spectroscopy, TEM, SEM, XRD, and X‐ray photoelectron spectroscopy (XPS). Metal‐free 1 self‐assembles into nanospheres with diameters in the range of 30–50 nm, depending mainly on intermolecular π–π interactions. In contrast, the coordination of nickel to 1 introduces an additional Ni–O coordination bond between the nitryl group of one molecule of 2 and the nickel center of the neighboring 2 unit, which, in cooperation with the intermolecular π–π interaction, induces the formation of nanobelts (ca. 50–300 μm length, 10–50 nm width) during the self‐assembly process of 2 .