<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sahoo, Padmini</style></author><author><style face="normal" font="default" size="100%">Chibde, Purva</style></author><author><style face="normal" font="default" size="100%">Das, Satyabrata</style></author><author><style face="normal" font="default" size="100%">Banerjee, Subhrashis</style></author><author><style face="normal" font="default" size="100%">Mali, Bhupendra P.</style></author><author><style face="normal" font="default" size="100%">Vanka, Kumar</style></author><author><style face="normal" font="default" size="100%">Gonnade, Rajesh G.</style></author><author><style face="normal" font="default" size="100%">Yildiz, Cem. B.</style></author><author><style face="normal" font="default" size="100%">Majumdar, Moumita</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Zwitterionic tetrastanna(II) cyclic crown</style></title><secondary-title><style face="normal" font="default" size="100%">European Journal of Inorganic  Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Deprotonation</style></keyword><keyword><style  face="normal" font="default" size="100%">Imidazole</style></keyword><keyword><style  face="normal" font="default" size="100%">Macrocycle</style></keyword><keyword><style  face="normal" font="default" size="100%">Sn-II cation</style></keyword><keyword><style  face="normal" font="default" size="100%">stannylene</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2023</style></year><pub-dates><date><style  face="normal" font="default" size="100%">OCT </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">26</style></volume><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	A 12-membered zwitterionic tetrastanna(II) cycle 1 having a crown ether-like topology has been isolated from the deprotonation of 1,1 &amp;amp; PRIME;-methylenediimidazole (B) with two equivalents of Sn[N(SiMe3)(2)](2) (A). The solid-state structure and NMR analysis confirms the tetrastanna(II) cycle 1 to be comprised of two stannate(II) and two stannyliumylidene ion pairs in alternating positions of the heterocycle. Computational analysis shows greater nucleophilicity at the proximally located stannate(II) centers. Nonetheless, the tetrastanna(II) cycle 1 remains poorly reactive due to engagement of Sn-II lone pair electrons in intramolecular donor-acceptor interactions. Simple deprotonation reaction between Sn[N(SiMe3)(2)](2) (A) and N-(diisopropylphenyl)imidazole (C) in equimolar ratio has led to a stannylene 2, involving the formation of a Sn-C covalent bond with the anionic imidazol-2-yl carbon center along with the release of NH(SiMe3)(2). Compound 2 exists as a dimer, where the unsubstituted ring nitrogen atom coordinated intermolecularly to the other stannylene center.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">29</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
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	2.3&lt;/p&gt;
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