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31.
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33.
C15H11NO2, Mr 237.3, monoclinic, space groupC
c, a=8.539(2),b=19.865(4),c=7.599(2)?,β=111.44(2)°,V=1199.8 ?3,Z=4,D
c=1.31 gcm−3,λ(CuKα)=1.5418 ?,μ=6.74cm−1,F(000)=496, room temperature. The structure was solved by direct methods with SHELX-86 and refined down to agreement valueR=0.046 for 1117 reflections above 2σ(I). The angle between the plane of the phthalimide group, which shows a little bent [1.2(2)°] between its two rings, and the
tolyl group is 56.1(1)°. The packing of the molecules is stabilized by van der Waal’s forces only.
Part XXVIII: Bocelli and Rizzoli (1990) 相似文献
34.
Zn(meadtc)2(2,2′‐bipy) is a ZnS3N2 chromophore with a distorted square pyramidal geometry. The IR band at 1002 cm?1 and the bond valence sum value of 1.98 confirmed the monodentate dithiocarbamate in coordination. The non‐bonding Zn–S distance is 5.004(3) Å. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
35.
G. Bocelli M. Catellani G.P. Chiusoli S. Larocca 《Journal of organometallic chemistry》1984,265(1):c9-c11
A new CC bond formation reaction involving activation of two aromatic CH bonds is reported. The X-ray structure of the title methanobiphenylene derivative is described. 相似文献
36.
37.
Paolo Bruni Gabriele Bocelli Andrea Cantoni Elisabetta Giorgini Marco Iacussi Eziana Maurelli Giorgio Tosi 《Journal of chemical crystallography》1995,25(10):683-691
Complexes of azobisindoles with tetracyanoethylene and tetracyanoquinodimethane were studied by UV-Vis, FT-IR, Raman, NMR and X-ray spectroscopies. FT-IR and Raman spectra, as well as X-ray analysis, gave useful information on the participation of various sites to the association, through analysis of CN and N=N vibrational modes, while UV-Vis and NMR spectra were less helpful. The crystal structure of complexes 1-ethyl-2-phenyl-3-(1-ethyl-2-phenyl-3-azoindole)indole/TCNE,3a and 1,2-diphenyl-3-(1,2-diphenyl-3-azoindole)indole/TCNQ,5b are reported. In the two complexes, the distances between donor and acceptor planes range between 3.4 and 3.5 Å; in3a tetracyanoethylene faces the phenyl ring of the indole, while in5b the superposition of tetracyanoquinodimethane with the donor is negligible. Compound3a,P–1,a=9.504(2),b=9.513(3),c=8.941(2) Å, =97.81(4), =103.38(3), =84.14(2)°,Z=2,D
calc=2.55 g cm–3; compound5b,P–1,a=12.648(3),b=12.205(2),c=7.263(3) Å, =103.69(2), =91.23(3), =110.61(2)°,Z=2,D
calc=2.53 g cm–3. 相似文献
38.
Gabriele Bocelli Liberato Cardellini Giovanni De Meo Adolfo Ricci Corrado Rizzoli Giorgio Tosi 《Journal of chemical crystallography》1990,20(6):561-569
Benzofused heterocycles like 10H-[1]benzo thieno[3,2-b] indole and thieno[3,2-b]benzo[b]thiophene form molecular associations with * organic acceptors. The weak interactions involved are viewed in terms of UV-Vis and IR techniques. The results, mainly in the case of complexes of 10H-[1]benzo thieno[3,2-b] indole, are in some disagreement with the literature. The structure of the complex 10H-[1]benzo thieno[3,2-b] indole/tetracyanoethylene is also reported. The four condensed rings constitute a conjugate system with significant lengthenings of the aromatic ring bonds and a shortening of those of the five-membered rings. The fragment as a whole is almost planar, and forms a dihedral angle of 39.9(1)° with the planar tetracyanoethylene molecule. 相似文献
39.
Eduard V. Ganin Marina S. Fonari Yurii A. Simonov Gabriele Bocelli Stepan S. Basok Vyacheslav V. Tkachuk Sergei A. Kotlyar Gerbert L. Kamalov 《Journal of inclusion phenomena and macrocyclic chemistry》2005,52(1-2):63-74
[1.5]Dibenzo-18-crown-6 ([1.5]DB18C6) forms the H-bonded supramolecular complexes with 3-nitro-1H-1,2,4-triazole (1:1), 2,4(1H,3H)-pyrimidinedithione (1:1), 1,2,5-oxadiazole-3,4-diamine monohydrate (1:1:1), ethanedithioamide (1:1) and 1,2-hydrazinedicarbothioamide (2:3). The first two complexes are discrete molecular adducts, two next complexes represent different types of tapes, while in the last complex the components are linked into 3D grid. In all cases, the formation of co-crystals results in the substitution of all or part of supramolecular homosynthons by heterosynthons and in the changing of supramolecular architecture.This revised version was published online in July 2005 with a corrected issue number. 相似文献
40.
Planar nickel(II) complexes involving N‐(2‐Hydroxyethyl)‐N‐methyldithiocarbamate, such as [NiX(nmedtc)(PPh3)] (X = Cl, NCS; PPh3 = triphenylphosphine), and [Ni(nmedtc)(P‐P)]ClO4(P‐P = 1,1‐bis(diphenylphosphino)methane(dppm); 1,3‐bis(diphenylphosphino)propane (1,3‐dppp); 1,4‐bis(diphenylphosphino)butane(1,4‐dppb) have been synthesized. The complexes have been characterized by elemental analyses, IR and electronic spectroscopies. The increased νC–N value in all the complexes is due to the mesomeric drift of electrons from the dithiocarbamate ligands to the metal atom. Single crystal X‐ray structure of [Ni(nmedtc)(1,3‐dppp)]ClO4·H2O is reported. In the present 1,3‐dppp chelate, the P–Ni–P angle is higher than that found in 1,2‐bis(diphenylphosphino)ethane‐nickel chelates and lower than 1,4‐bis(diphenylphosphino)butane‐nickel chelates, as a result of presence of the flexible propyl back bone connecting the two phosphorus atoms of the complex. 相似文献