𝔖 Bobbio Scriptorium
✦   LIBER   ✦

High resolution 13C NMR in undoped cis- and trans-polyacetylene

✍ Scribed by M. Mehring; H. Weber; W. Müller; G. Wegner

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
260 KB
Volume
45
Category
Article
ISSN
0038-1098

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

13C high-resolution NMR study of undoped
13C high-resolution NMR study of undoped polyacetylene
✍ Takehiko Terao; Shiro Maeda; Tokio Yamabe; Kazuo Akagi; Hideki Shirakawa 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 392 KB

13C NMR spectra of undoped polyacetylene, (CH),, have been measured. The existence of 3.4 mol% methyiene moieties as defects in the (CH), chains has been observed in t~ans-(CH)~. Measurements of partially cis-to-trans isomerized (CH), suggest the existence of isolated cis regions.

Cis-trans isomerization and 13C-NMR chem
Cis-trans isomerization and 13C-NMR chemical shift of polyphenylacetylene
✍ Fumiaki Ishii; Shigeyuki Matsunami; Minako Shibata; Toyoji Kakuchi 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 155 KB 👁 2 views

Before and after cis-trans isomerization, the observed 13 C-NMR chemical shifts of poly(phenylacetylene) (PPA) in the solid state were investigated on the basis of 13 C-NMR chemical shift calculations within AM1 for the cis-transoidal and deflected trans-transoidal forms. Two 13 C-resonance peaks in