{"id":10982,"date":"2022-11-15T03:38:41","date_gmt":"2022-11-14T19:38:41","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=10982"},"modified":"2022-11-15T03:38:41","modified_gmt":"2022-11-14T19:38:41","slug":"okafor-emmanuel-chukwuemekas-team-published-research-in-spectrochimica-acta-part-a-molecular-and-biomolecular-spectroscopy-in-1982-09-30-cas-1691-93-6","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=10982","title":{"rendered":"Okafor, Emmanuel Chukwuemeka’s team published research in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy in 1982-09-30 | CAS: 1691-93-6"},"content":{"rendered":"

Okafor, Emmanuel Chukwuemeka published the artcileThe metal complexes of heterocyclic \u03b2-diketones and their derivatives. IX. Lanthanon chelates of 3-methyl-1-phenyl-4-trifluoroacetylpyrazol-5-one (HPMTFP). Proton, carbon-13, and fluorine-19 NMR, IR, and UV-visible spectral studies<\/i><\/b>, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one<\/a>, the main research area is UV spectra pyrazolone lanthanide complex; pyrazolone lanthanide complex NMR.<\/p>\n

Lanthanon chelates of 3-methyl-1-phenyl-4-trifluoroacetylpyrazol-5-one (LH) were synthesized and investigated. Characterization was by elemental anal., conductivity measurements, Karl Fischer titrations, and IR and 1H NMR spectra. The complexes were neutral chelates with the empirical formula M(L)3.xH2O.yEtOH where for M = La, Nd, Eu, Dy, Er, Pr, and Lu, x = 2 and y = 0, whereas for M = Y and Gd, x = 2 and y = 0.5. 1H, 13C, and 19F NMR, IR, and UV-visible spectral results together with assignments are presented. The parameters of S. P. Sinha (1966) were calculated and discussed for Nd and Er.<\/p>\n

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about Bathochromic effect. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one<\/a>.<\/p>\n

Referemce:
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about Bathochromic effect. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one<\/a>.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[775,131],"tags":[740],"class_list":["post-10982","post","type-post","status-publish","format-standard","hentry","category-1691-93-6","category-pyrazoles-derivatives","tag-m-w250-300"],"yoast_head":"\nOkafor, Emmanuel Chukwuemeka's team published research in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy in 1982-09-30 | CAS: 1691-93-6 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"Okafor, Emmanuel Chukwuemeka published the artcileThe metal complexes of heterocyclic \u03b2-diketones and their derivatives. IX. Lanthanon chelates of 3-methyl-1-phenyl-4-trifluoroacetylpyrazol-5-one (HPMTFP). Proton, carbon-13, and fluorine-19 NMR, IR, and UV-visible spectral studies, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is UV spectra pyrazolone lanthanide complex; pyrazolone lanthanide complex NMR.\" \/>\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=10982\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Okafor, Emmanuel Chukwuemeka's team published research in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy in 1982-09-30 | CAS: 1691-93-6 | pyrazoles-derivatives\" \/>\n<meta property=\"og:description\" content=\"Okafor, Emmanuel Chukwuemeka published the artcileThe metal complexes of heterocyclic \u03b2-diketones and their derivatives. IX. Lanthanon chelates of 3-methyl-1-phenyl-4-trifluoroacetylpyrazol-5-one (HPMTFP). Proton, carbon-13, and fluorine-19 NMR, IR, and UV-visible spectral studies, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is UV spectra pyrazolone lanthanide complex; pyrazolone lanthanide complex NMR.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=10982\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-14T19:38:41+00:00\" \/>\n<meta name=\"author\" content=\"Jessica.F\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jessica.F\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=10982\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=10982\",\"name\":\"Okafor, Emmanuel Chukwuemeka's team published research in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy in 1982-09-30 | CAS: 1691-93-6 | pyrazoles-derivatives\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2022-11-14T19:38:41+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Okafor, Emmanuel Chukwuemeka published the artcileThe metal complexes of heterocyclic \u03b2-diketones and their derivatives. 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