Vibrational analysis of some transition metal complexes with deprotonated and neutral malonamide

Spectrochimica acta. Part A: Molecular spectroscopy Pub Date : 1994-12-01 DOI:10.1016/0584-8539(94)E0019-7

Sabrina H.J. De Beukeleer, Herman O. Desseyn

{"title":"Vibrational analysis of some transition metal complexes with deprotonated and neutral malonamide","authors":"Sabrina H.J. De Beukeleer, Herman O. Desseyn","doi":"10.1016/0584-8539(94)E0019-7","DOIUrl":null,"url":null,"abstract":"<div>Malonamide forms neutral <math><mtext>1</mtext><mtext>2</mtext></math> complexes MX2(LH2)2 with first row transition metals (M  Mn, Fe, Co, Ni, Cu, Zn; X  Cl, Br, I, NCS, ONO2; LH2  H2NCOCH2CONH2). <math><mtext>1</mtext><mtext>1</mtext></math> CuX2(LH2)1 (X  Cl, Br) could also be isolated. In alkaline medium, malonamide forms anionic complexes (ML2)2−.xH2O (M  Ni, Cu). A complete vibrational analysis (infrared and Raman spectroscopy) has been worked out and the metal—ligand vibrations clearly prove the weak field in the octahedral MX2(LH2)2 complexes. Spectroscopic evidence for the Jahn—Teller effect in the Cu complex is given by the metal—ligand vibrations, the hydrogen bonding and the Raman intensities of the ν(CO) and ν(CN).</div>","PeriodicalId":82782,"journal":{"name":"Spectrochimica acta. Part A: Molecular spectroscopy","volume":"50 14","pages":"Pages 2291-2309"},"PeriodicalIF":0.0000,"publicationDate":"1994-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0584-8539(94)E0019-7","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Spectrochimica acta. Part A: Molecular spectroscopy","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0584853994E00197","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

Abstract

Malonamide forms neutral $12$ complexes MX₂(LH₂)₂ with first row transition metals (M  Mn, Fe, Co, Ni, Cu, Zn; X  Cl, Br, I, NCS, ONO₂; LH₂  H₂NCOCH₂CONH₂). $11$ CuX₂(LH₂)₁ (X  Cl, Br) could also be isolated. In alkaline medium, malonamide forms anionic complexes (ML₂)²⁻.xH₂O (M  Ni, Cu). A complete vibrational analysis (infrared and Raman spectroscopy) has been worked out and the metal—ligand vibrations clearly prove the weak field in the octahedral MX₂(LH₂)₂ complexes. Spectroscopic evidence for the Jahn—Teller effect in the Cu complex is given by the metal—ligand vibrations, the hydrogen bonding and the Raman intensities of the ν(CO) and ν(CN).

查看原文本刊更多论文

与去质子化和中性丙二胺的一些过渡金属配合物的振动分析

丙二酰胺与第一排过渡金属(MMn, Fe, Co, Ni, Cu, Zn)形成中性12配合物MX2(LH2)2;XCl, Br, I, NCS, ONO2;Lh2h2ncoch2conh2)。11 CuX2(LH2)1 (XCl, Br)也可以分离得到。在碱性介质中，丙二酰胺形成阴离子络合物(ML2)2−。xH2O (MNi, Cu)。对MX2(LH2)2八面体配合物进行了完整的振动分析(红外和拉曼光谱)，金属-配体振动清楚地证明了弱场的存在。金属-配体振动、氢键和ν(CO)和ν(CN)的拉曼强度给出了Cu配合物中Jahn-Teller效应的光谱证据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Spectrochimica acta. Part A: Molecular spectroscopy

自引率

0.00%

发文量