TY - JOUR

T1 - Samarium Polyarsenides Derived from Nanoscale Arsenic

AU - Schoo, Christoph

AU - Bestgen, Sebastian

AU - Egeberg, Alexander

AU - Seibert, Jasmin

AU - Konchenko, Sergey N.

AU - Feldmann, Claus

AU - Roesky, Peter W.

N1 - Publisher Copyright: © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2019/3/22

Y1 - 2019/3/22

N2 - Zintl phases of arsenic and molecular compounds containing Zintl-type polyarsenide ions are of fundamental interest in basic and applied sciences. Unfortunately, the most obvious and reactive arsenic source for the preparation of defined molecular polyarsenide compounds, yellow arsenic As 4 , is very inconvenient to prepare and neither storable in pure form nor easy to handle. Herein, we present the synthesis and reactivity of elemental As 0 nanoparticles (As 0 Nano , d=7.2±1.8 nm), which were successfully utilized as a reactive arsenic source in reductive f-element chemistry. Starting from [Cp* 2 Sm] (Cp*=η 5 -C 5 Me 5 ), the samarium polyarsenide complexes [(Cp* 2 Sm) 2 (μ-η 2 :η 2 -As 2 )] and [(Cp* 2 Sm) 4 As 8 ] were obtained from As 0 nano , thereby generating the largest molecular polyarsenide of the f-elements and circumventing the use of As 4 in preparative chemistry.

AB - Zintl phases of arsenic and molecular compounds containing Zintl-type polyarsenide ions are of fundamental interest in basic and applied sciences. Unfortunately, the most obvious and reactive arsenic source for the preparation of defined molecular polyarsenide compounds, yellow arsenic As 4 , is very inconvenient to prepare and neither storable in pure form nor easy to handle. Herein, we present the synthesis and reactivity of elemental As 0 nanoparticles (As 0 Nano , d=7.2±1.8 nm), which were successfully utilized as a reactive arsenic source in reductive f-element chemistry. Starting from [Cp* 2 Sm] (Cp*=η 5 -C 5 Me 5 ), the samarium polyarsenide complexes [(Cp* 2 Sm) 2 (μ-η 2 :η 2 -As 2 )] and [(Cp* 2 Sm) 4 As 8 ] were obtained from As 0 nano , thereby generating the largest molecular polyarsenide of the f-elements and circumventing the use of As 4 in preparative chemistry.

KW - activation

KW - arsenic

KW - nanoparticles

KW - polyarsenides

KW - samarium

KW - PHOSPHORUS

KW - COMPLEX

KW - AS-4

KW - P-4 ACTIVATION

KW - REACTIVITY

KW - RAY CRYSTAL-STRUCTURE

KW - NANOPARTICLES

KW - CLUSTERS

KW - LANTHANIDE

UR - http://www.scopus.com/inward/record.url?scp=85061454727&partnerID=8YFLogxK

U2 - 10.1002/anie.201813370

DO - 10.1002/anie.201813370

M3 - Article

C2 - 30614173

AN - SCOPUS:85061454727

VL - 58

SP - 4386

EP - 4389

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 13

ER -