We provide definitive experimental proof that the archetypal string-like compound [Cr5(tpda)4(NCS)2] has alternating long and short Cr–Cr separations in the solid state, as conjectured by F. A. Cotton, rather than essentially equally spaced Cr atoms, as initially claimed (H2tpda = N2,N6-di(pyridin-2-yl)pyridine-2,6-diamine). Single-crystal X-ray data collected from 292 to 3 K revealed that the misinterpretation is caused by pseudo-merohedral twinning and that bond length alternation is enhanced at low temperature.
The structure of a pentachromium(II) extended metal atom chain at 3 K: Cotton's conjecture proven / Cornia, Andrea; Nicolini, Alessio; Mcmonagle, Charles J.; Probert, Michael R.. - In: DALTON TRANSACTIONS. - ISSN 1477-9226. - 51:44(2022), pp. 16790-16794. [10.1039/D2DT03103E]
The structure of a pentachromium(II) extended metal atom chain at 3 K: Cotton's conjecture proven
Cornia, Andrea
;Nicolini, Alessio;
2022
Abstract
We provide definitive experimental proof that the archetypal string-like compound [Cr5(tpda)4(NCS)2] has alternating long and short Cr–Cr separations in the solid state, as conjectured by F. A. Cotton, rather than essentially equally spaced Cr atoms, as initially claimed (H2tpda = N2,N6-di(pyridin-2-yl)pyridine-2,6-diamine). Single-crystal X-ray data collected from 292 to 3 K revealed that the misinterpretation is caused by pseudo-merohedral twinning and that bond length alternation is enhanced at low temperature.
| File | Dimensione | Formato | |
|---|---|---|---|
|
CORNIA, Dalton Trans. 2022, 51, 16790-16794.pdf
Accesso riservato
Tipologia:
VOR - Versione pubblicata dall'editore
Dimensione
591.82 kB
Formato
Adobe PDF
|
591.82 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
|
AAM_Dalton Trans. 2022, 51, 16790-16794.pdf
Open access
Tipologia:
AAM - Versione dell'autore revisionata e accettata per la pubblicazione
Dimensione
430.6 kB
Formato
Adobe PDF
|
430.6 kB | Adobe PDF | Visualizza/Apri |
|
AAM_Dalton Trans. 2022, 51, 16790-16794_SI.pdf
Open access
Tipologia:
AAM - Versione dell'autore revisionata e accettata per la pubblicazione
Dimensione
541.53 kB
Formato
Adobe PDF
|
541.53 kB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
