5,11,17,23-Tetra-tert-butyl-25,27-bis­[2-(4-nitro­phen­oxy)eth­oxy]calix[4]arene-26,28-diol acetonitrile tetra­solvate

نویسندگان

  • Jiu-Mao Yuan
  • Yong-Hong Gao
  • Jian-Ping Ma
  • Dian-Shun Guo
چکیده

In the crystal structure of the title compound, C(60)H(70)N(2)O(10)·4CH(3)CN, the calix[4]arene mol-ecule adopts an open-cone conformation with two intra-molecular O-H⋯O hydrogen bonds. The four benzene rings of the calix[4]arene are twisted to the mean plane defined by four methyl-ene C atoms bridging the benzene rings, with dihedral angles ranging from 57.74 (10) to 65.99 (12)°. Two pendant nitro-phenyl rings are nearly perpendicular to each other, the dihedral angle being 70.9 (3)°. The asymmetric unit of the crystal structure contains four acetonitrile solvent mol-ecules, one of which lies in the calix cavity and makes C-H⋯π inter-actions and another links with the calix[4]arene via C-H⋯O hydrogen bonding. One tert-butyl group is disordered over two sets of sites, with a 0.736 (13):0.264 (13) occupancy ratio.

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

Calix[4]arene-click-cyclodextrin and supramolecular structures with watersoluble NIPAAM-copolymers bearing adamantyl units: “Rings on ring on chain”

We describe the calixarene-cyclodextrin-coupling via click reaction starting from 5,11,17,23-tetra-tert-butyl-25,27-dipropargylether-26,28-hydroxy-calix[4]arene (calix[4]arene-dipropargylether) (2) onto 6I-azido-6I-deoxycyclomaltoheptaose (3) under microwave assisted conditions. The coupling was proven by MALDI-TOF mass spectrometry, ¹H NMR and IR-spectroscopy. The pH dependent supramolecular c...

متن کامل

[5,11,17,23-Tetra-tert-butyl-25,27-(3,6-dioxaoctan-1,8-di­oxy)-26,28-bis­(pyridin-2-ylmeth­oxy)calix[4]arene]sodium iodide–1,2,4,5-tetra­fluoro-3,6-diiodo­benzene–methanol (2/3/4)

The title compound, [Na(C62H76N2O6)]I·1.5C6F4I2·2CH3OH, is composed of five components: a calix[4]arene derivative (hereinafter C4), a sodium cation, an iodide anion, a 1,2,4,5-tetra-fluoro-3,6-diiodo-benzene (tFdIB) mol-ecule and a methanol mol-ecule in a 1:1:1:1.5:2 ratio. The complex shows several inter-esting features: (i) the polyoxygenated loop of C4 effectively chelates a sodium cation i...

متن کامل

5,11,17,23-Tetra­kis(1,1-di­methyl­eth­yl)-26,28-di­hydroxy­calix[4]arene-25,27-mono­thia­crown-3

The title calix[4]arene compound [systematic name: 3,9,15,34-tetra-tert-butyl-19,29-dioxa-24-thia-hexa-cyclo-[15.13.7.1(7,11).1(32,36).0(5,30).0(13,18)]nona-triaconta-1(30),2,4,7,9,11(39),13,15,17,32,34,36(38)-dodeca-ene-38,39-diol], C52H70O4S, displays a cone-like conformation, the opposite arene rings bridged by the mono-thia-crown-3 unit are nearly parallel [dihedral angle = 16.01 (18)°], wh...

متن کامل

Aqua­(μ-cone-26,28-dibut­oxy-25,27-bis­{N-[5-(dimethyl­amino)­naphthalene-1-sulfon­yl]carbamoylmeth­oxy}-5,11,17,23-tetra­kis­(1,1-dimethyl­eth­yl)calix[4]arene(2−))disodium acetonitrile tetra­solvate

The structure of the title complex, [Na(2)(C(80)H(98)N(4)O(10)S(2))(H(2)O)]·4CH(3)CN, obtained after crystallization from aceto-nitrile, contains two formula units in the asymmetric unit (Z' = 2) and an estimated four mol-ecules of acetonitrile per calixarene moiety. It is unusual for two Na(+) ions to occupy the lower rims of the cone calix[4]arene, as in this case, with one Na(+) ion forming ...

متن کامل

25,26,27,28-Tetra­butoxy-5,11,17,23-tetra-tert-butyl­calix[4]arene chloro­form tetra­solvate dihydrate

The title compound, C(60)H(88)O(4)·4CHCl(3)·2H(2)O, is the alkyl-ated product of 5,11,17,23-tetra-tert-butyl-calix[4]arene. It adopts a distorted cone conformation which leads to an open cavity. All the phenolic rings are tilted so that their tert-butyl groups are pitched away from the calix cavity. Two opposite aromatic rings are close to being perpendicular to one another [dihedral angle 85.0...

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 65  شماره 

صفحات  -

تاریخ انتشار 2009