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Filename: drivers/Session_files_driver.php
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Filename: Session/Session.php
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File: /var/www/html/index.php
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Function: require_once
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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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Function: require_once
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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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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Function: require_once
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
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Function: require_once
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Message: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated
Filename: models/Detail_model.php
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Function: strpos
File: /var/www/html/application/controllers/Detail.php
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Function: insertAPISummary
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Function: require_once
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Filename: helpers/my_audit_helper.php
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Function: str_replace
File: /var/www/html/application/controllers/Detail.php
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Function: formatAIDetailSummary
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Filename: controllers/Detail.php
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Line: 256
Function: _error_handler
File: /var/www/html/index.php
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Filename: controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Message: Trying to access array offset on value of type null
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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Message: Undefined array key "usage"
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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Filename: controllers/Detail.php
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Function: _error_handler
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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
In this contribution we are introducing a Variable Bridging Ligand (VBL) strategy for the preparation of heterometallic complexes. One synthetic challenge associated with other methods described in the existing literature stems from the fact that if there is a need to change the donor groups on a metalloligand, both the initial ligand and the resulting metalloligand must be synthesized all over again. To circumvent this problem, we reasoned that if a metal complex would have one labile ligand that can be easily replaced by various bridging polytopic species, several metalloligands can thus be generated starting from the same starting material. Experimentally, we describe here the synthesis and characterization of a new ligand, bis(pyrazol-1-yl)--(quinolin-8-yl)acetamide, HLQ2Pz (Pz = pyrazolyl ring) and its reactions with copper(II) centers. In a first step, pro-metalloligand preparation was investigated using Cu(II) primary metallic centers and the HLQ2Pz main ligand to produce (LQ2Pz)Cu(OAc)·H2O, (LQ2Pz)Cu(BF4), and (LQ2Pz)Cu(ClO4)·MeCN complexes. Using (LQ2Pz)Cu(ClO4)·MeCN as a pro-metalloligand, two metalloligands (LQ2Pz)Cu[O2CCH(pz)2] and (LQ2Pz)Cu[O2CCH(CH2pz)2] were prepared. Employing the latter metalloligand, two mixed valence Cu/Cu complexes, {(LQ2Pz)CuII[O2CCH(CH2pz)2CuI(PPh3)2]}NO3 and {(LQ2Pz)CuII[O2CCH(CH2pz)2]}2CuI(PF6) were synthesized. These compounds were characterized by NMR, UV-Vis, and IR spectroscopy, and in solid state by single crystal X-ray diffraction.
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Source |
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http://dx.doi.org/10.1039/d4dt02903h | DOI Listing |
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