675 research outputs found
(4-Nitrophenylsulfanylmethyl)triphenylstannane and (4-nitrophenylsulfonylmethyl)triphenylstannane: R22(X) rings (X is 10, 18 or 24) and C-H...p interactions
Peer reviewedPublisher PD
Glyoxal 4-nitrophenylhydrazone : triple helices linked into a three-dimensional channel structure
Peer reviewedPublisher PD
Hydrogen bonding in C-methylated nitroanilines : the three-dimensional framework structure of 2-methyl-4-nitroaniline
Peer reviewedPublisher PD
A triclinic polymorph of benzanilide : disordered molecules form hydrogen-bonded chains
Peer reviewedPublisher PD
2,6-Diiodo-4-nitrophenol, 2,6-diiodo-4-nitrophenyl acetate and 2,6-diiodo-4-nitroanisole: interplay of hydrogen bonds, iodo-nitro interactions and aromatic [pi]-[pi]-stacking interactions to give supramolecular structures in one, two and three dimensions
Peer reviewedPublisher PD
Hydrogen bonding in substituted nitroanilines : isolated nets in 1,3-diamino-4-nitrobenzene and continuously interwoven nets in 3,5-dinitroaniline
Peer reviewedPublisher PD
Non-symmetric liquid crystal dimer containing a carbohydrate-based moiety
Peer reviewedPublisher PD
The 1:1 co-crystal of 2-bromonaphthalene-1,4-dione and 1,8-dihydroxyanthracene-9,10-dione: crystal structure and Hirshfeld surface analysis
The asymmetric unit of the title co-crystal, C10H5BrO2·C14H8O4 [systematic name: 2-bromo-1,4-dihydronaphthalene-1,4-dione–1,8-dihydroxy-9,10-dihydroanthracene-9,10-dione (1/1)], features one molecule of each coformer. The 2-bromonaphthoquinone molecule is almost planar [r.m.s deviation of the 13 non-H atoms = 0.060 Å, with the maximum deviations of 0.093 (1) and 0.099 (1) Å being for the Br atom and a carbonyl-O atom, respectively]. The 1,8-dihydroxyanthraquinone molecule is planar (r.m.s. deviation for the 18 non-H atoms is 0.022 Å) and features two intramolecular hydroxy-O—H...O(carbonyl) hydrogen bonds. Dimeric aggregates of 1,8-dihydroxyanthraquinone molecules assemble through weak intermolecular hydroxy-O—H...O(carbonyl) hydrogen bonds. The molecular packing comprises stacks of molecules of 2-bromonaphthoquinone and dimeric assembles of 1,8-dihydroxyanthraquinone with the shortest π–π contact within a stack of 3.5760 (9) Å occurring between the different rings of 2-bromonaphthoquinone molecules. The analysis of the Hirshfeld surface reveals the importance of the interactions just indicated but, also the contribution of additional C—H...O contacts as well as C=O...π interactions to the molecular packing
Between the point of view and the point of being: the space of the stereoscopic tours
One of the most interesting features of the travel stereoview
series is not their three-dimensional effect
but rather the intertwined outcome of realism and
“being-thereness” in the experience of early twentieth
century armchair travellers. On the set of Italy through
the Stereoscope, the viewer’s “path of the gaze” was a
novelty compared to two dimensional photographs
and stereoviews. The Underwood & Underwood publishing
company created a stereoscopic multimodal
tour to improve the impression of realism with a proprioceptive
perception of the scene. The procedure of
textual débrayage, the description of the experience as
it is happening here and now, the direction of the viewer’s
gaze with a narrative itinerary, the changing of the
visual convergence with the variation in the points of
attention: all of these elements fostered a synaesthesia
for the spectator. The result was immersion in an explorable
space between the “point of view” (2D images)
and the “point of being” (virtual reality)
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