2015
DOI: 10.1002/anie.201506905
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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 composi… Show more

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Cited by 22 publications
(47 citation statements)
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“…Furthermore, structural differences between P2 and CMP‐1, prepared by the conventional method by hot injection under excess of TEB, can be observed (Figure , shaded insets). The occurrence of a shoulder at 1600 cm −1 and the additional band at 1440 cm −1 in the CMP‐1 spectrum resulted from the formation of enyne moieties, which is in agreement with IR data reported before and the NMR data acquired by Bunz and co‐workers …”
Section: Resultssupporting
confidence: 91%
See 1 more Smart Citation
“…Furthermore, structural differences between P2 and CMP‐1, prepared by the conventional method by hot injection under excess of TEB, can be observed (Figure , shaded insets). The occurrence of a shoulder at 1600 cm −1 and the additional band at 1440 cm −1 in the CMP‐1 spectrum resulted from the formation of enyne moieties, which is in agreement with IR data reported before and the NMR data acquired by Bunz and co‐workers …”
Section: Resultssupporting
confidence: 91%
“…The fragments were analyzed to shed light on the structure of the struts linking the former nodes, and thereby on the mechanism of internal crosslinking. The struts were found to consist of isomeric enynes originating from dimers, trimers, and tetramers of alkyne groups …”
Section: Introductionmentioning
confidence: 99%
“…180 This material was not studied for its gas uptake properties but was readily digested by acid treatment and, by analysis of the fragments, gave very detailed insights into the polymerization mechanism of PAE networks. 181 In 2013 Zhang et al polymerized tris(4-chlorophenyl)-phosphine to obtain polymeric triphenylphosphine, which could be oxidized to polymeric triphenylphosphine oxide. 176 The networks exhibited BET surface areas of 1284 (PP-P) and 1353 m 2 g À1 (PP-PO).…”
Section: This Journal Is C the Royal Society Of Chemistry 2017mentioning
confidence: 99%
“…Broad resonances observed in the spectrum are attributed to the inhomogenity in the chemical functionalities of the polymer network. Under the ambient conditions, there is a possibility of cross‐linking of diyne bonds to form enyne linkages resulting in inhomogenity in the chemical functionalities of the polymer network …”
Section: Resultsmentioning
confidence: 99%