Ordered supramolecular assembly of bis[3,4,1 2,13,21,22,30, 31-octa(dodecylthio)-2,3-naphthalocyaninato] erbium at the air/water interface

• Published in: Science China. Chemistry Vol. 44; no. 6; pp. 650 - 656
• Main Authors: Chen, Yanli, Liu, Hongguo, Pan, Na, Zhang, Xianxi, Liu, Wei, Cheng, Chuanfu, Jiang, Jianzhuang
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer Nature B.V 01.12.2001; Department of Chemistry, Shandong University, Jinan 250100, China; Department of Chemistry, Jinan University, Jinan 250002, China%Key Laboratory for Colloid and Interface Chemistry of the Ministry of Education Shandong University, Jinan 250100, China%Department of Chemistry, Shandong University, Jinan 250100, China%Department of Physics, Shandong Normal University, Jinan 250014, China
• Subjects: Assembly; Diffraction patterns; Erbium; Mica; Monolayers; Monomolecular films; Photomicrographs; Pressure; Substrates; Langmuir monolayer; supramolecular assembly; bis(naphthalocyaninato) erbium
• ISSN: 1006-9291; 1674-7291; 1862-2771; 1869-1870
• DOI: 10.1007/BF02891690

The supramolecular assembly of bis[3, 4, 12, 13, 21, 22, 30, 31-octa(dodecylthio)-2, 3-naphthalocyaninato] erbium complex (Er[Nc(SC12H25)8]2) was fabricated at the air/water interface by Langmuir monolayer technique. Surface pressure-area isotherm indicates that stable monolayer is formed. The monolayer morphology on mica was investigated by atomic force microscopy (AFM). Columnar domains of ca. 100 nm X (20–30) nm appearing in the micrograph have ordered orientation. Polarized UV-vis spectra and small-angle X-ray diffraction pattern show that the macrocycles tilt in the monolayer. The orientation angle of the naphthalocyanine ring with respect to the substrate was found to be ca. 54°. Each monolayer is ca. 3.53 nm thick. The columnar domain comprises 4–6 rows of columnar supramolecular assemblies where the molecules stack face-to-face.