A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

3,3'-Diphenyl-1,1'-(butane-1,4-di-yl)dithio-urea. | LitMetric

3,3'-Diphenyl-1,1'-(butane-1,4-di-yl)dithio-urea.

Acta Crystallogr Sect E Struct Rep Online

School of Chemistry, University of KwaZulu-Natal, Durban 4000, South Africa.

Published: September 2011

The asymmetric unit of the title compound, C(18)H(22)N(4)S(2), contains one half-mol-ecule, the complete mol-ecule being generated by crystallographic inversion symmetry. The crystal structure features two inter-molecular N-H⋯S hydrogen-bonding inter-actions, the first generating an infinite chain along the b axis and the second an infinite chain along the a axis, together forming an inter-locking structure.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3200795PMC
http://dx.doi.org/10.1107/S1600536811033071DOI Listing

Publication Analysis

Top Keywords

infinite chain
8
chain axis
8
33'-diphenyl-11'-butane-14-di-yldithio-urea asymmetric
4
asymmetric unit
4
unit title
4
title compound
4
compound c18h22n4s2
4
c18h22n4s2 half-mol-ecule
4
half-mol-ecule complete
4
complete mol-ecule
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!