Crystal structure of a polycyano–polycadmate host clathrate including a charge-transfer complex of methylviologen dication and mesitylene as a guest

2001 ◽  
pp. 1398-1399 ◽  
Author(s):  
Hirofumi Yoshikawa ◽  
Shin-ichi Nishikiori ◽  
Kinga Suwinska ◽  
Roman Luboradzki ◽  
Janusz Lipkowski
2002 ◽  
Vol 128 (2) ◽  
pp. 155-159 ◽  
Author(s):  
M. Mas-Torrent ◽  
J. Llacay ◽  
K. Wurst ◽  
V. Laukhin ◽  
J. Vidal-Gancedo ◽  
...  

1988 ◽  
Vol 61 (2) ◽  
pp. 588-590 ◽  
Author(s):  
Kazumasa Honda ◽  
Midori Goto ◽  
Masayasu Kurahashi ◽  
Hiroyuki Anzai ◽  
Madoka Tokumoto ◽  
...  

2014 ◽  
Vol 70 (10) ◽  
pp. o1090-o1091
Author(s):  
Johannes Beck ◽  
Jörg Daniels ◽  
Petra Krieger-Beck ◽  
Gertrud Dittmann ◽  
Adriano Bof de Oliveira

The reaction of 2-(1,2,3,4-tetrahydronapthalen-1-ylidene)hydrazinecarbothioamide (TTSC) with pyrazine-2,3,5,6-tetracarbonitrile (tetracyanopyrazine, TCNP) yields the title 2:1 charge-transfer adduct, 2C11H12N3S·C6N8. The complete TCNP molecule is generated by a crystallographic inversion centre and the non-aromatic ring in the TTSC molecule adopts an envelope conformation with a methylene C atom as the flap. In the crystal, the thiosemicarbazone molecules are connected through inversion-related pairs of N—H...S interactions, building a polymeric chain along theb-axis direction. The TCNP molecules are embedded in the structure, forming TTSC–TCNP–TTSC stacks with the aromatic rings of TTSC and the molecular plane of TCNP in a parallel arrangement [centroid–centroid distance = 3.5558 (14) Å]. Charge-transfer (CT)viaπ-stacking is indicated by a CT band around 550 cm−1in the single-crystal absorption spectrum.


2011 ◽  
Vol 67 (3) ◽  
pp. 244-249 ◽  
Author(s):  
Pilar García-Orduña ◽  
Slimane Dahaoui ◽  
Claude Lecomte

The crystal structure of the 2:1 charge-transfer complex of tetrathiafulvalene [2,2′-bis(1,3-dithiolylidene)] and bromanil (tetrabromo-1,4-benzoquinone) [(TTF)2-BA, (C6H4S4)2–C6Br4O2] has been determined by X-ray diffraction at room temperature, 100 and 25 K. No structural phase transition occurs in the temperature range studied. The crystal is made of TTF–BA–TTF sandwich trimers. A charge-transfer estimation between donor and acceptor (0.2 e) molecules is proposed in comparison to the molecular geometries of TTF–BA and TTF and BA isolated molecules. Displacement parameters of the molecules have been modeled with the TLS formalism.


2018 ◽  
Vol 149 (24) ◽  
pp. 244107 ◽  
Author(s):  
Tianji Ma ◽  
Matteo Bonfanti ◽  
Pierre Eisenbrandt ◽  
Rocco Martinazzo ◽  
Irene Burghardt

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