Tetrahedral Tetrakis(p‐ethynylphenyl) Group IV Compounds in Microporous Polymers: Effect of Tetrel on Porosity

Three Sonogashira–Hagihara polymerization protocols were applied for the synthesis of conjugated microporous polymers (CMPs) by using group IV tetra(p‐ethynylphenyl) monomers with 1,4‐diiodobenzene or 1,4‐dibromobenzene. The optical properties and surface areas of the CMPs were compared and related...

Full description

Saved in:
Bibliographic Details
Published in:ChemPlusChem (Weinheim, Germany) Germany), 2018-05, Vol.83 (5), p.448-454
Main Authors: Uptmoor, Andrea C., Geyer, Florian L., Rominger, Frank, Freudenberg, Jan, Bunz, Uwe H. F.
Format: Article
Language:English
Subjects:
3D networks
microporous polymers
Sonogashira–Hagihara polymerizations
structure–property relationships
tetrahedral connectors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three Sonogashira–Hagihara polymerization protocols were applied for the synthesis of conjugated microporous polymers (CMPs) by using group IV tetra(p‐ethynylphenyl) monomers with 1,4‐diiodobenzene or 1,4‐dibromobenzene. The optical properties and surface areas of the CMPs were compared and related to the preparation conditions and the geometry of the tetrahedral building block as obtained after X‐ray analysis. In each series, surface areas decreased—independently from the chosen parameters of catalyst, base, and solvent—from carbon‐centered CMPs (1595 m2 g−1) to silicon‐, germanium‐, and tin‐centered (649 m2 g−1) networks. The center makes a difference: A comparison of microporous polymers with group IV (tetra(p‐ethynylphenyl) monomers reveals the same trend for the central atom‐dependent surface areas independent from the Sonogashira–Hagihara polymerization protocol employed.
ISSN:2192-6506
2192-6506
DOI:10.1002/cplu.201800214