N,N′-Bis(4-bromo­benzyl­idene)butane-1,4-diamine

نویسندگان

  • Hoong-Kun Fun
  • Hadi Kargar
  • Reza Kia
چکیده

The mol-ecule of the title Schiff base compound, C(18)H(18)Br(2)N(2), lies across a crystallographic inversion centre and adopts an E configuration with respect to the C=N bond. In the crystal structure, mol-ecules are linked into chains along [201] through inter-molecular Br⋯Br inter-actions [3.3747 (3) Å], which are significantly shorter than the sum of the van der Waals radii for Br atoms (3.70 Å). The crystal structure is further stabilized by π-π stacking inter-actions [centroid-centroid distance 3.6811 (11) Å].

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Factors influencing mononuclear versus multinuclear coordination in a series of potentially hexadentate acyclic N6 ligands: the roles of flexibility and chelate ring size.

The synthesis of the new potentially hexadentate ligands N,N'-bis(2,2'-bipyridin-6-ylmethyl)butane-1,4-diamine (bmbu), N,N'-bis(2,2'-bipyridin-6-ylmethyl)pentane-1,5-diamine (bmpt) and N,N'-bis(2,2'-bipyridin-6-ylmethyl)octane-1,8-diamine (bmot) from the condensation of 2,2'-bipyridine-6-carbaldehyde with the appropriate diamine (butane-1,4-diamine, pentane-1,5-diamine and octane-1,8-diamine, r...

متن کامل

N,N′-Bis(3,4-dimethoxy­benzyl­idene)butane-1,4-diamine

The title Schiff base compound, C(22)H(28)N(2)O(4), was synthesized by the reaction of 3,4-dimethoxy-benzaldehyde and 1,4-diamino-butane in methanol. The mol-ecule is located on a center of inversion with one half-mol-ecule in the asymmetric unit. Both C=N double bonds are in a trans configuration. Inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional network.

متن کامل

(E,E)-N 1,N 4-Bis(2,6-difluoro­benzyl­idene)butane-1,4-diamine

The asymmetric unit of the title compound, C(18)H(16)F(4)N(2), comprises two half crystallographically independent potentially bidentate Schiff base ligands, with an inversion centre located at the mid-point of the central C-C bond. The crystal packing is stabilized by inter-molecular C-H⋯F and π-π inter-actions [centroid-centroid distance = 3.8283 (11) Å].

متن کامل

Two novel bis-azomethines derived from quinoxaline-2-carbaldehyde.

The Schiff base compounds N,N'-bis[(E)-quinoxalin-2-ylmethylidene]propane-1,3-diamine, C(21)H(18)N(6), (I), and N,N'-bis[(E)-quinoxalin-2-ylmethylidene]butane-1,4-diamine, C(22)H(20)N(6), (II), crystallize in the monoclinic crystal system. These molecules have crystallographically imposed symmetry. Compound (I) is located on a crystallographic twofold axis and (II) is located on an inversion ce...

متن کامل

cis-[1,4-Bis(diphenyl­phosphan­yl)butane-κ2 P,P′]dichlorido(cyclo­hexane-1,2-diamine-κ2 N,N′)ruthenium(II) dichloro­methane monosolvate

In the title compound, [RuCl(2)(C(6)H(14)N(2))(C(28)H(28)P(2))]·CH(2)Cl(2), the Ru(II) ion is coordinated in a slightly distorted octa-hedral environment, formed by two cis-oriented chloride ligands, two cis P atoms of a 1,4-bis-(diphenyl-phosphan-yl)butane ligand and two cis-chelating N atoms of a bidentate cyclo-hexane-1,2-diamine ligand. In the crystal, pairs of mol-ecules form inversion dim...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 64  شماره 

صفحات  -

تاریخ انتشار 2008