Sun-God : Won\u27t You Bring Him Back To Me

https://digitalcommons.library.umaine.edu/mmb-vp/4313/thumbnail.jp

I\u27m Through : Shedding Tears Over You

https://digitalcommons.library.umaine.edu/mmb-vp/5890/thumbnail.jp

1,5-Bis(penta­fluoro­phen­yl)-3-phenyl­pent-2-ene-1,5-dione

In the title compound, C23H8F10O2, the three arene rings are twisted one with respect to the other: the two perfluorinated arene rings are tilted to each other by an angle of 60.39 (7)°. They are inclined to the non-fluorinated phenyl unit by 38.85 (7) and 78.74 (7)°. The olefinic double bond adopts an E configuration. The carbonyl groups are not in a coplanar alignment with reference to the neighbouring arene rings. The crystal packing features a number of weak C—H⋯F inter­actions, which leads to the formation of a three-dimensional network

1-(Methoxymethyl)pyrene

The title compound, C18H14O, crystallizes with aromatic �–� stacking interactions

Crystal structure of 25,26,27,28-tetrabenzyloxy-5,11,17,23-tert-butylcalix- [4]arene, C72H80O4

C72H80P4, monoclinic, P121/n1 (no. 14), a = 10.3709(3) Å, b = 23.2467(6) Å, c = 25.1444(7) Å, β= 92.660(1)°, V = 6055.5 Å3, Z = 4, R gt(F) = 0.060, wRref(F2) = 0.190, T = 273 K

Trimethyl 3,3',3''-(benzene-1,3,5-triyl)tripropynoate

In the crystal of trimethyl 3,3',3''-(benzene-triyl)tripropynoate, a system of new hydrogen bond ring motifs involving C-H...O interactions give rise to layer formation of molecules while the layers are connected among each other via weak contacts of C---H...O and C---H...pi type to specifically complete the supramolecular packing structure

The d(10) route to dye-sensitized solar cells: step-wise assembly of zinc(II) photosensitizers on TiO2 surfaces

Dye-sensitized solar cells have been assembled using a sequential approach: a TiO2 surface was functionalized with an anchoring ligand, followed by metallation with Zn(OAc)(2) or ZnCl2, and subsequent capping with a chromophore functionalized 2,2`:6`,2 ``-terpyridine; the DSCs exhibit surprisingly good efficiencies confirming the effectiveness of the new strategy for zinc-based DSC fabrication

5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene tetrahydrofuran solvate

The asymmetric unit of the title compound, C44H64O4·C4H8O, comprises two crystallographically independent calixarene mol-ecules, which display a partial cone conformation, and two tetrahydrofuran molecules. The crystal packing is stabilized by C - H⋯π contacts involving the meth-oxy groups, while the solvent mol-ecules are located in voids between the calixarene molecules. Two of the tert-butyl residues of each calixarene mol-ecule are disordered over two positions [0.74/0.26 (ring B), 0.71/0.29 (ring C), 0.77/0.23 (ring C′), 0.67/0.33 (ring D′)], resulting in bond distances that deviate from ideal values

2,2′-Bis(9-hydr­oxy-9-fluoren­yl)biphen­yl–ethyl acetate (1/1)

In the title host–guest compound, C38H26O2·C4H8O2, the ethyl acetate mol­ecule (guest), which adopts a fully extended conformation, and the biphenyl derivative (host) are connected via O—H⋯O hydrogen bonds [H⋯O = 1.90 (3) Å] into discrete assemblies. The hydro­carbon skeleton of the host mol­ecule deviates only slightly from C2 symmetry. The OH groups of the host are involved in intra­molecular O—H⋯O hydrogen bonding [H⋯O = 1.83 (3) Å]