Premium
Self‐assembly of Pyrene‐modified Rhomboidal Metallodendrimers via Directional Metal‐ligand Bonding Approach
Author(s) -
He Menglan,
Han Qing,
He Jiuming,
Li Quanjie,
Abliz Zeper,
Tan Hongwei,
Xu Lin,
Yang Haibo
Publication year - 2013
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201300247
Subject(s) - chemistry , pyrene , dendrimer , supramolecular chemistry , acceptor , ligand (biochemistry) , crystallography , metal , photochemistry , polymer chemistry , organic chemistry , crystal structure , biochemistry , physics , receptor , condensed matter physics
The design and self‐assembly of pyrene‐modified rhomboidal metallodendrimers R1 – R6 via directional metal‐ligand bonding approach is described. By employing pyrene‐containing 120° di‐Pt(II) acceptor and appropriate 60° dendritic dipyridyl donors, a variety of [ G‐1 ]–[ G‐3 ] pyrene‐modified rhomboidal metallodendrimers with well‐defined shape and size were prepared under mild conditions in high yields. The supramolecular dendrimers were characterized with multinuclear NMR ( 1 H and 31 P) and mass spectrometry (CSI‐TOF‐MS). Isotopically resolved mass spectrometry data support the existence of the pyrene‐modified dendrimers with rhomboidal cavities, and NMR data were consistent with the formation of all ensembles. The shape and size of all rhomboidal dendrimers were investigated with the PM6 semiempirical molecular orbital method. Their primary photochemical properties were studied as well.