Jump to main content
Jump to site search

Issue 38, 2018
Previous Article Next Article

Reactivity of bulky Ln(ii) amidinates towards P4, As4, and As4S4

Author affiliations


The reduction of P4, As4 and As4S4 (realgar) with the sterically encumbered reductants [(DippForm)2Ln(thf)2] (Ln = Sm, Yb; DippForm = {(2,6-iPr2C6H3)NC(H) = N(2,6-iPr2C6H3)}) is reported. For the first time, purely f-element containing inverse inorganic sandwich complexes [{(DippForm)2Sm}2244-E4)] (E = P, As), featuring a π-aromatic cyclo [E4]2− middle deck, were obtained upon reaction with P4 and As4. The reaction with realgar leads to a cage disruption and the formation of the unusual species [{(DippForm)(DippForm-AsS2)}Ln(thf)]. The reactivity of divalent Ln amidinates towards main group molecules is in comparison to metallocenes faster, more efficient and thus significantly influenced by the ligand environment. Experimental results are supported by DFT calculations.

Graphical abstract: Reactivity of bulky Ln(ii) amidinates towards P4, As4, and As4S4

Back to tab navigation

Supplementary files

Article information

23 Feb 2018
13 Mar 2018
First published
28 Mar 2018

Chem. Commun., 2018,54, 4770-4773
Article type

Reactivity of bulky Ln(II) amidinates towards P4, As4, and As4S4

C. Schoo, S. Bestgen, R. Köppe, S. N. Konchenko and P. W. Roesky, Chem. Commun., 2018, 54, 4770
DOI: 10.1039/C8CC01519H

Social activity

Search articles by author