Luminescent coordination polymers based on [{Mo6I8 }(CN)6]2− clusters and Ag( i ) complexes: structural design of bright red to NIR scintillating materials

Luminescent coordination polymers based on [{Mo6I8 }(CN)6]2− clusters and Ag( i ) complexes: structural design of bright red to NIR scintillating materials Full article

Journal

Journal of Materials Chemistry C
ISSN: 2050-7526 , E-ISSN: 2050-7534

Output data

Year: 2026, Volume: 14, Number: 37, Pages: 17378–17389 Pages count : DOI: 10.1039/d6tc01735e

Authors

Litvinova Yulia M. ¹ , Subbotin Yaromir A. ² , Stass Dmitri V. ^3,4 , Metlin Mikhail T. ⁵ , Taydakov Ilya V. ⁵ , Ryzhikov Maxim R. ¹ , Yarovoy Spartak S. ¹ , Sukhikh Taisiya S. ¹ , Mironov Yuri V. ¹ , Tarasov Alexey B. ^6,2 , Brylev Konstantin A. ¹ , Gaifulin Yakov M. ¹

Affiliations

1	Nikolaev Institute of Inorg. Chem. SB RAS, 3 ac. Lavrentiev avenue, Novosibirsk, 630090, Russia
2	Laboratory of New Materials for Solar Energetics, Faculty of Materials Science, Lomonosov Moscow State University, 1 Leninskiye Gory, building 73, Moscow, 119991, Russia
3	Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, 3 Institutskaya Street, Novosibirsk, 630090, Russia
4	Novosibirsk State University, 2 Pirogova Street, Novosibirsk, 630090, Russia
5	Lebedev Physical Institute RAS, 53 Leninsky Avenue, Moscow, 119991, Russia
6	Department of Chemistry, Lomonosov Moscow State University, 1 Leninskiye Gory, building 73, Moscow, 119991, Russia

Funding (1)

Russian Science Foundation

In this work, a series of coordination polymers based on the [{Mo6I8}(CN)6]2− cluster units coordinated by silver phosphine complexes were studied. Three new polymeric compounds, [{Ag2(dppe)3}{Mo6I8}(CN)6] (1), [{Ag2(dppe)2}{Mo6I8}(CN)6] (2), and [{Ag2(dppp)2}{Mo6I8}(CN)6] (3), where dppe = 1,2-bis(diphenylphosphino)ethane and dppp = 1,3-bis(diphenylphosphino)propane, were synthesized solvothermally, displaying chain (1 and 2) and layered (3) structures. All compounds exhibit high hydrolytic and thermal stability. At room temperature, their photoluminescence quantum yields are 0.27, 0.19, and 0.28, with corresponding X-ray-excited luminescence light yields of 13 360, 9843, and 22 265 ph per MeV for 1–3, respectively. Dispersing the polymers in ethylene-vinyl acetate (EVA) yielded composite materials suitable for use as X-ray scintillation screens, with enhanced X-ray emission efficiency (up to 30 348 ph per MeV) and spatial resolution (up to 7.5 line pairs per mm). Quantum-chemical calculations correlate the luminescence properties with structural features, specifically the presence of argentophilic contacts. The absence of such contacts appears to promote charge transfer, thereby enhancing emission. This combination of structural variation and composite engineering enabled the development of new bright broadband red/NIR scintillators based on the [{Mo6I8}(CN)6]2− cluster.

Litvinova Y.M. , Subbotin Y.A. , Stass D.V. , Metlin M.T. , Taydakov I.V. , Ryzhikov M.R. , Yarovoy S.S. , Sukhikh T.S. , Mironov Y.V. , Tarasov A.B. , Brylev K.A. , Gaifulin Y.M.
Luminescent coordination polymers based on [{Mo6I8 }(CN)6]2− clusters and Ag( i ) complexes: structural design of bright red to NIR scintillating materials
Journal of Materials Chemistry C. 2026. V.14. N37. P.17378–17389. DOI: 10.1039/d6tc01735e WOS Scopus OpenAlex

Submitted:	May 28, 2026
Published print:	Oct 1, 2026

≡ Web of science:	WOS:001852879700001
≡ Scopus:	2-s2.0-105047901699
≡ OpenAlex:	W7172031896