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Filename: drivers/Session_files_driver.php
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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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Function: _error_handler
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
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Filename: models/Detail_model.php
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Function: insertAPISummary
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
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Function: require_once
Density functional theory computation indicates that bridge splitting of [Pt R (μ-SEt )] proceeds by partial dissociation to form R Pt (μ-SEt )Pt R (SEt ), followed by coordination of N-donor bromoarenes (L-Br) at Pt leading to release of Pt R (SEt ), which reacts with a second molecule of L-Br, providing two molecules of PtR (SEt )(L-Br-N). For R=4-tolyl (Tol), L-Br=2,6-(pzCH ) C H Br (pz=pyrazol-1-yl) and 2,6-(Me NCH ) C H Br, subsequent oxidative addition assisted by intramolecular N-donor coordination via Pt Tol (L-N,Br) and reductive elimination from Pt intermediates gives mer-Pt (L-N,C,N)Br and Tol . The strong σ-donor influence of Tol groups results in subtle differences in oxidative addition mechanisms when compared with related aryl halide oxidative addition to palladium(II) centres. For R=Me and L-Br=2,6-(pzCH ) C H Br, a stable Pt product, fac-Pt Me {2,6-(pzCH ) C H -N,C,N)Br is predicted, as reported experimentally, acting as a model for undetected and unstable Pt Tol {L-N,C,N}Br undergoing facile Tol reductive elimination. The mechanisms reported herein enable the synthesis of Pt pincer reagents with applications in materials and bio-organometallic chemistry.
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http://dx.doi.org/10.1002/chem.202102687 | DOI Listing |
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