TY - JOUR
T1 - Electronic mobility and crystal structures of 2,5-dimethylanilinium triiodide and tin-based organic-inorganic hybrid compounds
AU - Kamminga, Machteld E.
AU - Gélvez-Rueda, María C.
AU - Maheshwari, Sudeep
AU - van Droffelaar, Irene S.
AU - Baas, Jacob
AU - Blake, Graeme R.
AU - Grozema, Ferdinand C.
AU - Palstra, Thomas T.M.
N1 - Publisher Copyright:
© 2018 The Authors
PY - 2019/2
Y1 - 2019/2
N2 - We synthesize single crystals of a new 2,5-dimethylanilinium tin iodide organic-inorganic hybrid compound and 2,5-dimethylanilinium triiodide. Single-crystal X-ray diffraction reveals that the hybrid grows as a unique rhombohedral structure consisting of one-dimensional chains of SnI6-octahedra that share corners and edges to build up a ribbon along the [111] direction. Notably, we find that hypophosphorous acid, H3PO2, is of central importance to the formation of this hybrid. In the absence of H3PO2, we synthesize 2,5-dimethylanilinium triiodide from the same starting compounds. We investigate the synthesis routes that drive the growth of these two compounds with distinct crystal structures, appearance and properties. Pulse-radiolysis time-resolved microwave conductivity measurements and density functional theory calculations reveal that both compounds have low charge carrier mobilities and very long lifetimes, consistent with their one-dimensional structural characteristics. Our findings give a better understanding of the relation between synthesis, crystal structures and charge carrier mobilities.
AB - We synthesize single crystals of a new 2,5-dimethylanilinium tin iodide organic-inorganic hybrid compound and 2,5-dimethylanilinium triiodide. Single-crystal X-ray diffraction reveals that the hybrid grows as a unique rhombohedral structure consisting of one-dimensional chains of SnI6-octahedra that share corners and edges to build up a ribbon along the [111] direction. Notably, we find that hypophosphorous acid, H3PO2, is of central importance to the formation of this hybrid. In the absence of H3PO2, we synthesize 2,5-dimethylanilinium triiodide from the same starting compounds. We investigate the synthesis routes that drive the growth of these two compounds with distinct crystal structures, appearance and properties. Pulse-radiolysis time-resolved microwave conductivity measurements and density functional theory calculations reveal that both compounds have low charge carrier mobilities and very long lifetimes, consistent with their one-dimensional structural characteristics. Our findings give a better understanding of the relation between synthesis, crystal structures and charge carrier mobilities.
KW - UT-Hybrid-D
KW - Microwave conductivity
KW - Organic-organic hybrids
KW - Single-crystal XRD
KW - Tin iodide
KW - Triiodide
KW - Hypophosphorous acid
UR - http://www.scopus.com/inward/record.url?scp=85058983359&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2018.12.029
DO - 10.1016/j.jssc.2018.12.029
M3 - Article
AN - SCOPUS:85058983359
SN - 0022-4596
VL - 270
SP - 593
EP - 600
JO - Journal of solid state chemistry
JF - Journal of solid state chemistry
ER -