title: Reverse Engineering of Conjugated Microporous Polymers: Defect Structures of Tetrakis(4-ethynylphenyl)stannane Networks.
abstract: Two different conjugated microporous polymers (CMPs) based on tetrakis(4-ethynylphenyl)stannane as the repeating unit were synthesized and their BET surfaces and thermal properties were investigated. The first direct method to elucidate the molecular structure of the organic linkers between the tin centers by digestion of the CMP is described. Selective cleavage of the tin-carbon bonds with chloroacetic acid afforded the isolated bridging units and provided insight into the surprisingly varied chemical composition of these networks.
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany).
authors.forename: Andrea C
authors.initials: AC
authors.lastname: Uptmoor
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany).
authors.forename: Jan
authors.initials: J
authors.lastname: Freudenberg
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany).
authors.forename: S Thimon
authors.initials: ST
authors.lastname: Schwäbel
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany).
authors.forename: Fabian
authors.initials: F
authors.lastname: Paulus
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany).
authors.forename: Frank
authors.initials: F
authors.lastname: Rominger
authors.affiliation: Centre of Advanced Materials (CAM), Ruprecht-Karls-Universität, Im Neuenheimer Feld 225, 69120 Heidelberg (Germany).
authors.forename: Felix
authors.initials: F
authors.lastname: Hinkel
authors.affiliation: Organisch-Chemisches Institut, Ruprecht-Karls-Universität, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany). uwe.bunz@oci.uni-heidelberg.de.|Centre of Advanced Materials (CAM), Ruprecht-Karls-Universität, Im Neuenheimer Feld 225, 69120 Heidelberg (Germany). uwe.bunz@oci.uni-heidelberg.de.
authors.forename: Uwe H F
authors.initials: UH
authors.lastname: Bunz
keywords: defect structures; homocoupling; microporous materials; polymers; structure elucidation