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1,8-Bis(diphenylphosphino)naphthalene: A rigid chelating, diphosphine analogue of proton sponge

✍ Scribed by Richard D. Jackson; Stuart James; A.Guy Orpen; Paul G. Pringle


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
222 KB
Volume
458
Category
Article
ISSN
0022-328X

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📜 SIMILAR VOLUMES


The N1s ESCA Spectrum of Protonated 1,8-
✍ E. Haselbach; Anita Henriksson; F. Jachimowicz; J. Wirz 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 German ⚖ 186 KB 👁 1 views

## Abstract The ESCA spectrum of protonated 1,8‐bis‐(dimethylamino) naphthalene (“proton sponge”) (I) has been recorded in the region of N1s binding energies. The results indicate that IH^+^ possesses an __unsymmetrical__ NH…︁N hydrogen bridge.

1,8-Bis(tetramethylguanidino)naphthalene
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1,8-Bis(tetramethylguanidino)naphthalene (TMGN, 1) is a new, readily accessible, and stable ™proton sponge∫ with an experimental pK BH value of 25.1 in MeCN, which is nearly seven orders of magnitude higher in basicity than the classical proton sponge 1,8-bis(dimethylamino)-naphthalene (DMAN). Becau