3-{(E)-[(4-Formyl­phen­yl)iminium­yl]meth­yl}naphthalen-2-olate

نویسندگان

  • Abeer Mohamed Farag
  • Siang Guan Teoh
  • Hasnah Osman
  • Madhukar Hemamalini
  • Hoong-Kun Fun
چکیده

The title Schiff base compound, C(18)H(13)NO(2), is a zwitterion, with the naphthol hy-droxy group deprotonated and the imine N atom protonated. It adopts an E configuration about the central C=N double bond. The dihedral angle between the naphthyl ring system and the benzene ring is 1.73 (11)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, adjacent mol-ecules are connected by inter-molecular C-H⋯O hydrogen bonds, forming a supra-molecular ribbon along the b axis.

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

Zwitterionic 1-{(E)-[(2-methyl­phen­yl)iminium­yl]meth­yl}naphthalen-2-olate

The title Schiff base, C18H15NO, crystallizes in its zwitterionic form and an N-H⋯O hydrogen bond closes an S(6) ring. The dihedral angle between the aromatic ring systems is 36.91 (10)°. Weak aromatic π-π stacking occurs in the crystal [minimum centroid-centroid separation = 3.7771 (15) Å].

متن کامل

1-{[(E)-(4-{[(2Z)-2,3-Di­hydro-1,3-thia­zol-2-yl­idene]sulfamo­yl}phen­yl)iminium­yl]meth­yl}naphthalen-2-olate

In the title zwitterionic compound, C20H15N3O3S2, the 2-hy-droxy-naphthalene-1-carbaldehyde group A, the anilinic unit B and the 1,3-thia-zol-2(3H)-imine group C are each approximately planar with r.m.s. deviation of 0.0721, 0.0412 and 0.0125 Å, respectively. The dihedral angles between A/B, A/C and B/C are 24.70 (10), 79.97 (7) and 83.14 (6)°, respectively. There is an intra-molecular S(6) mot...

متن کامل

Methyl (2Z)-2-{[N-(2-formyl­phen­yl)-4-methyl­benzene­sulfonamido]­meth­yl}-3-(naphthalen-1-yl)prop-2-enoate

In the title compound, C(29)H(25)NO(5)S, the sulfonyl-bound benzene ring forms dihedral angles of 42.1 (1) and 48.5 (1)°, respectively, with the formyl-substituted benzene ring and the naphthalene residue. In the crystal, pairs of C-H⋯O inter-actions lead to the formation of R(2) (2)(10) inversion dimers, which are linked by further C-H⋯O inter-actions into supra-molecular tapes running along [...

متن کامل

(E)-3-{[([1,1′-Biphen­yl]-3-ylmeth­yl)iminium­yl]meth­yl}-6,8-di­chloro-2H-chromen-4-olate

In the crystal of the title compound, C23H17Cl2NO2, the H atom of the -OH group is transferred to the N atom of the imine, forming a zwitterion. This results in a six-membered intra-molecular O⋯H-N hydrogen-bonded ring, rather than that formed with an O-H⋯N hydrogen bond. The dihedral angle between the rings of the biphenyl unit is 13.88 (10)°. In the crystal, mol-ecules are linked by N-H⋯O and...

متن کامل

1-[((E)-{2-[(2-Nitro­benz­yl)(2-{[(E)-(2-oxidonaphthalen-1-yl)methyl­idene]aza­nium­yl}eth­yl)amino]­eth­yl}aza­niumyl­idene)meth­yl]naphthalen-2-olate monohydrate

The title Schiff base compound, C(33)H(30)N(4)O(4)·H(2)O, adopts an E configuration with respect to each C=N double bond. In the mol-ecule, there are naphthoxide anions and the protonated imino N atoms. Intra-molecular N-H⋯O hydrogen bonds lead to the formation of approximately planar (maximum deviation 0.029 Å for H atom) six-membered rings.. In the crystal, mol-ecules are linked by O-H⋯O and ...

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 67  شماره 

صفحات  -

تاریخ انتشار 2010