Abstract: A series of 1D coordination polymers (CPs), [MnX2(L)]n (X = Cl, Br, I), made of MnX2 units bridged by 1,7-[Ph2P(O)]2-meta-carborane ligands (L) through the O–Mn–O linkages, have been designed. At ambient temperature, these CPs manifest green phosphorescence with quantum yields of up to 60%, which is the highest value for Mn(II) CPs. CP [MnI2(L)]n and its structurally different solvate [MnI2(L)·CH2Cl2]n also exhibit bright triboluminescence. Thermochromic luminescence of the designed CPs appears as reversible shifting of their emission color, when the temperature varies from 350 to 77 K and back. Moreover, [MnI2(L)·CH2Cl2]n reversibly changes its emission properties during desolvation-solvation processes thus featuring solvatochromic luminescence. According to photophysical and EPR data, the observed phosphorescence originates from the ligand-sensitized 4T1 → 6A1 transition in Mn2+ ions. Enhanced robustness of the title CPs is demonstrated by retaining their emission properties after prolonged heating at 210 °C.

Cite: Artem'ev A.V. , Davydova M.P. , Berezin A.S. , Sukhikh T.S. , Samsonenko D.G.
Photo- and triboluminescent robust 1D polymers made of Mn(II) halides and meta-carborane based bis(phosphine oxide)
Inorganic chemistry frontiers. 2021. V.8. N9. P.2261-2270. DOI: 10.1039/d1qi00036e WOS Scopus РИНЦ OpenAlex

Dates:

Submitted:	Jan 10, 2021
Accepted:	Feb 8, 2021
Published print:	Feb 18, 2021
Published online:	Feb 18, 2021

Identifiers:

Web of science:	WOS:000647262800004
Scopus:	2-s2.0-85105529098
Elibrary:	46083448
OpenAlex:	W3129501742

Citing:

DB	Citing
Web of science	33
Scopus	33
Elibrary	35
OpenAlex	38

Altmetrics: