{"id":12260,"date":"2023-02-13T04:17:49","date_gmt":"2023-02-12T20:17:49","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=12260"},"modified":"2023-02-13T04:17:49","modified_gmt":"2023-02-12T20:17:49","slug":"storr-alan-et-al-published-their-research-in-canadian-journal-of-chemistry-in-1998-cas-15953-73-8","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=12260","title":{"rendered":"Storr, Alan et al. published their research in Canadian Journal of Chemistry in 1998 | CAS: 15953-73-8"},"content":{"rendered":"<p>Transition metal azolates from metallocenes. Part 3: polymeric manganese(II) and nickel(II) pyrazolates; synthesis, characterization, and magnetochemistry was written by Storr, Alan;Summers, David A.;Thompson, Robert C.. And the article was included in Canadian Journal of Chemistry in 1998.<a href=\"https:\/\/www.ambeed.com\/products\/15953-73-8.html\">Recommanded Product: 15953-73-8<\/a> This article mentions the following:<\/p>\n<p>Direct reactions of nickelocene and manganocene with molten pyrazoles in an inert atm. or under vacuum gave the following metal pyrazolate compounds: [Ni(4-Xpz)<sub>2<\/sub>]<sub>x<\/sub> (X = H, Cl and pz = pyrazolate); [M(4-Xdmpz)<sub>2<\/sub>]<sub>x<\/sub> (X = Cl, Br and pzH = pyrazole). On the bases of indirect evidence all compounds are considered to have extended chain structures with metal ions linked in chains by double bridging pyrazolates. The two [Ni(4-Xpz)<sub>2<\/sub>]<sub>x<\/sub> compounds are diamagnetic compounds while all others are paramagnetic and reveal antiferromagnetic coupling between neighboring metal ions. Analyses of the magnetic data (Hamiltonian H = -2J \u9357?S<sub>i<\/sub>-S<sub>j<\/sub>) yields values of the exchange coupling compounds and -0.41 cm<sup>-1<\/sup> for the [Mn(4-Xpz)<sub>2<\/sub>(4-XpzH)]<sub>x<\/sub> compounds In the experiment, the researchers used many compounds, for example, 4-Chloro-3,5-dimethyl-1H-pyrazole (cas: 15953-73-8<a href=\"https:\/\/www.ambeed.com\/products\/15953-73-8.html\">Recommanded Product: 15953-73-8<\/a>).<\/p>\n<p>4-Chloro-3,5-dimethyl-1H-pyrazole (cas: 15953-73-8) belongs to pyrazole derivatives. The 1H-pyrazole provides an excellent means by which to provide the requisite hydrogen bond acceptor\u95b3\u30e6\u5f86onor motifs, whether as a monocyclic ring or as a fused indazole ring. The presence of both electronegative nitrogen atoms in the pyrazole ring reduces the electron density of the C3- and C5-positions leaving electron density of C4-position unaltered. Thus the C4-position is vulnerable to electrophilic attack. The C3 electrophilic-position may undergo deprotonation in the presence of a strong base leading to ring opening.<a href=\"https:\/\/www.ambeed.com\/products\/15953-73-8.html\">Recommanded Product: 15953-73-8<\/a><\/p>\n<p>Referemce:<br \/><a href=\"https:\/\/en.wikipedia.org\/wiki\/Pyrazole\">Pyrazole &#8211; Wikipedia<\/a>,<br \/><a href=\"https:\/\/www.sciencedirect.com\/topics\/chemistry\/pyrazoles\">Pyrazoles &#8211; an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>4-Chloro-3,5-dimethyl-1H-pyrazole (cas: 15953-73-8) belongs to pyrazole derivatives. The 1H-pyrazole provides an excellent means by which to provide the requisite hydrogen bond acceptor\u95b3\u30e6\u5f86onor motifs, whether as a monocyclic ring or as a fused indazole ring. The presence of both electronegative nitrogen atoms in the pyrazole ring reduces the electron density of the C3- and C5-positions leaving electron density of C4-position unaltered. Thus the C4-position is vulnerable to electrophilic attack. The C3 electrophilic-position may undergo deprotonation in the presence of a strong base leading to ring opening.<a href=\"https:\/\/www.ambeed.com\/products\/15953-73-8.html\">Recommanded Product: 15953-73-8<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[835,131],"tags":[128],"class_list":["post-12260","post","type-post","status-publish","format-standard","hentry","category-15953-73-8","category-pyrazoles-derivatives","tag-100-200"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Storr, Alan et al. published their research in Canadian Journal of Chemistry in 1998 | CAS: 15953-73-8 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"Transition metal azolates from metallocenes. Part 3: polymeric manganese(II) and nickel(II) pyrazolates; synthesis, characterization, and magnetochemistry was written by Storr, Alan;Summers, David A.;Thompson, Robert C.. And the article was included in Canadian Journal of Chemistry in 1998.Recommanded Product: 15953-73-8 This article mentions the following:\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pyrazoles-derivatives.com\/?p=12260\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Storr, Alan et al. published their research in Canadian Journal of Chemistry in 1998 | CAS: 15953-73-8 | pyrazoles-derivatives\" \/>\n<meta property=\"og:description\" content=\"Transition metal azolates from metallocenes. Part 3: polymeric manganese(II) and nickel(II) pyrazolates; synthesis, characterization, and magnetochemistry was written by Storr, Alan;Summers, David A.;Thompson, Robert C.. 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