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
Selective coupling of NO by a nonclassical dinuclear dinitrosyliron complex (D-DNIC) to form NO is reported. The coupling is facilitated by the pyridinediimine (PDI) ligand scaffold, which enables the necessary denticity changes to produce mixed-valent, electron-deficient tethered DNICs. One-electron oxidation of the [{Fe(NO)}] complex Fe(PDI)(NO) () results in NO coupling to form NO via the mixed-valent {[Fe(NO)]} species, which possesses an electron-deficient four-coordinate {Fe(NO)} site, crucial in N-N bond formation. The hemilability of the PDI scaffold dictates the selectivity in N-N bond formation because stabilization of the five-coordinate {Fe(NO)} site in the mixed-valent [{Fe(NO)}] species, [Fe(PDI)(NO)][PF] (), does not result in an electron-deficient, four-coordinate {Fe(NO)} site, and hence no N-N coupling is observed.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1021/acs.inorgchem.1c02285 | DOI Listing |
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