TY - JOUR
T1 - New Understanding on an Old Compound
T2 - Insights on the Origin of Chain Sequence Defects and Their Impact on the Electronic Structure of AuCN
AU - Velasco-Arias, Donaji
AU - Mojica, Rodrigo
AU - Zumeta-Dubé, Inti
AU - Ruíz-Ruíz, Fabían
AU - Puente-Lee, Iván
AU - Reguera, Edilso
N1 - Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/9/24
Y1 - 2021/9/24
N2 - Gold cyanide, AuCN, despite its simple formula unit, has surprising structural features not completely understood to date. The present contribution discusses the results of a structural study on the nature of defects found in 1D AuCN when submitted to mechanical grinding. This is an appropriate treatment to induce structural defects in that solid, which were identified for the first time by combining XRD, XPS, Raman, and UV-vis techniques. Furthermore, it is striking that the CN−Au−CN and CN−Au−NC sequences get disordered upon grinding while the NC−Au−CN gets ordered. Additionally, it is shown that the atomic chains apart from getting unraveled during the grinding process, are preferentially disrupted at the Au−N bond. The induced defects have a large impact on the UV-vis absorption spectrum of AuCN.
AB - Gold cyanide, AuCN, despite its simple formula unit, has surprising structural features not completely understood to date. The present contribution discusses the results of a structural study on the nature of defects found in 1D AuCN when submitted to mechanical grinding. This is an appropriate treatment to induce structural defects in that solid, which were identified for the first time by combining XRD, XPS, Raman, and UV-vis techniques. Furthermore, it is striking that the CN−Au−CN and CN−Au−NC sequences get disordered upon grinding while the NC−Au−CN gets ordered. Additionally, it is shown that the atomic chains apart from getting unraveled during the grinding process, are preferentially disrupted at the Au−N bond. The induced defects have a large impact on the UV-vis absorption spectrum of AuCN.
KW - AuCN
KW - Defects
KW - Gold cyanide
KW - Mechanical milling
KW - Raman spectra
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=85113166861&partnerID=8YFLogxK
U2 - 10.1002/ejic.202100537
DO - 10.1002/ejic.202100537
M3 - Artículo
AN - SCOPUS:85113166861
SN - 1434-1948
VL - 2021
SP - 3742
EP - 3751
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 36
ER -