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1,2-Di-tert-butyl-ethane-1,2-diyl bis-(tert-butane-sulfinamide).

ABSTRACT: In the title compound, C(18)H(40)N(2)O(2)S(2), a vicinal diamine derivative, the crystal structure is stabilized by two intra-molecular N-H?O hydrogen bonds. The distance between the two kernel chiral C atoms is 1.580?(2)?Å.

SUBMITTER: Sun X

PROVIDER: S-EPMC2968083 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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1,2-Di-tert-butyl-ethane-1,2-diyl bis-(tert-butane-sulfinamide).

Sun Xiaoxia X Hu Yu Y Fan Congbin C Xiao Weihong W

Acta crystallographica. Section E, Structure reports online 20081220 Pt 1

In the title compound, C(18)H(40)N(2)O(2)S(2), a vicinal diamine derivative, the crystal structure is stabilized by two intra-molecular N-H⋯O hydrogen bonds. The distance between the two kernel chiral C atoms is 1.580 (2) Å. ...[more]

PMID: 21581629

Similar Datasets

Crystal structure of 1,2-bis-[(2-tert-butyl-phen-yl)imino]-ethane.

Project description:The whole molecule of the title compound, C22H28N2, (I), is generated by inversion symmetry. The mol-ecule is rather similar to that of 2,3-bis-[(2-tert-butyl-phen-yl)imino]-butane, (II), a di-imine ligand comprising similar structural features [Ferreira et al. (2006 ▶). Acta Cryst. E62, o4282-o4284]. Both ligands crystallize with the -N=C(R)-C(R)=N- group around an inversion centre, in a trans configuration. Comparing the two structures, it may be noted that the independent planar groups in both mol-ecules [the central link, -N=C(R)-C(R)=N-, and the terminal aromatic ring] subtend an angle of 69.6 (1)° in (II) and 49.4 (2)° in (I). Ferreira and co-workers proposed that such angle deviation may be ascribed to the presence of two non-classical intra-molecular hydrogen bonds and steric factors. In fact, in (I), similar non-classical hydrogen bonds are observed, and the larger angular deviation in (II) may be assigned to the presence of methyl groups in the di-imino fragment, which can cause steric hindrance due to the presence of bulky tert-butyl substituents in the aromatic rings. The C=N bond lengths are similar in both compounds and agree with comonly accepted values.

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A second polymorph of [1,2-bis-(di-tert-butyl-phosphino)ethane]dichlorido-platinum(II).

Project description:The title complex, [PtCl(2)(C(18)H(40)P(2))], contains a Pt(II) center in an approximately square-planar geometry [cis angle range = 88.09?(3)-91.39?(3)°; twist angle = 1.19?(5)°]. The Pt-P bond lengths of 2.2536?(8) and 2.2513?(8)?Å and the Pt-Cl bond lengths of 2.3750?(8) and 2.3588?(8)?Å are normal. This crystal form is a polymorph of a structure reported previously [Harada, Kai, Yasuoka & Kasai (1976 ?). Bull. Chem. Soc. Jpn, 49, 3472-3477].

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Project description:The title compound, C(24)H(30)O(6), does not exhibit π-π inter-actions due to the steric effect of the bulky tert-butyl groups present in the mol-ecule. The presence of these groups at the 2 and 2' positions hinders the free motion of the benzene rings relative to each other, causing them to adopt an anti-periplanar arrangement. The benzene rings are twisted by just under 50.96 (17)° with respect to each other. The carbonyl groups within the mol-ecule are directed in different directions, one towards the biphenyl group and the other away from it. The mol-ecules are linked together by C=O⋯H-C hydrogen bonds.

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A triclinic polymorph of bis-(?-di-tert-butyl-phosphanido)bis-[(di-tert-butyl-phosphane)palladium(I)].

Project description:A new polymorph of the title compound, [Pd(2)(C(8)H(18)P)(2)(C(8)H(19)P)(2)], has been found. It belongs to the triclinic P-1 space group, whereas the known form [Leoni, Sommovigo, Pasquali, Sabatino & Braga (1992 ?), J. Organo-met. Chem.423, 263-270] crystallizes in the monoclinic C2/c space group. The title compound features a dinuclear palladium complex with a planar central Pd(2)(?-P)(2) core (r.m.s. deviation = 0.003?Å). The Pd-Pd distance of 2.5988?(5)?Å is within the range of a Pd(I)-Pd(I) bond. The mol-ecules of both polymorphs are located on a crystallographic centre of inversion. The mol-ecular conformations of the two polymorphs are essentially identical. The crystal packing patterns, on the other hand, are slightly different.

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Ethane-1,2-diyl bis-(pyridine-3-car-box-ylate).

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6,6'-Di-tert-butyl-2,2'-[1,2-phenyl-ene-bis(nitrilo-methyl-idyne)]diphenol.

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(1S*,2S*)-1,2-Di-tert-butyl-glycol.

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Di-tert-butyl cyclo-hex-2-ene-1,4-diyl dicarbonate.

Project description:In the title mol-ecule, C(16)H(26)O(6), the central cyclo-hexene ring is in a half-chair conformation. The carbonyl groups are in a trans arrangement with respect to each other and the dihedral angle between the mean planes of the carbonate groups is 10.8?(2)°.

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