Amido-Komplexe von Mangan(II). Synthese und Kristallstrukturen von [Mn(NPh2)2(THF)]2 und Na2[Mn(NPh2)4] · 2 C7H8

✍ Scribed by Markus A. Putzer; Astrid Pilz; Ulrich Müller; Bernhard Neumüller; Kurt Dehnicke

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: German
• Weight: 163 KB
• Volume: 624
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/(sici)1521-3749(199808)624:8<1336::aid-zaac1336>3.0.co;2-3

✦ Synopsis

Inhaltsu È bersicht. Der silylierte Amido-Komplex [Mn{N(SiMe 3 ) 2 } 2 (THF)] reagiert in Toluol-Lo È sung mit Diphenylamin unter Ligandenaustausch zu dem Diphenylamido-Komplex [Mn(NPh 2 ) 2 (THF)] 2 (1), der orangerote sa È ulenfo È rmige Kristalle bildet. 1 reagiert in THF-Lo È sung mit NaN(SiMe 3 ) 2 , und nach Kristallisation aus Toluol erha È lt man gelboranges Na 2 [Mn(NPh 2 ) 4 ] ´2 C 7 H 8 (2). Nach den Kristall-strukturanalysen sind in 1 (Raumgruppe P2 1 /c, Z = 2) die Manganatome u È ber die N-Atome zweier NPh 2 ± -Gruppen zu zentrosymmetrischen Mn 2 N 2 -Vierringen mit nahezu gleich langen Mn±N-Bindungen verknu È pft. 2 (Raumgruppe I4 1 /a, Z = 4) bildet eine dreidimensionale Raumnetzstruktur, die durch ¹innere Solvatationª der Natriumionen mit den Phenylringen der NPh 2 ± -Gruppen zustande kommt.

Amido Complexes of Manganese(II).

Syntheses and Crystal Structures of [Mn(NPh 2 ) 2 (THF)] 2 and Na 2 [Mn(NPh 2 ) 4 ] ´2 C 7 H 8 Abstract. The silylated amido complex [Mn{N(SiMe 3 ) 2 } 2 (THF)] reacts in toluene solution with diphenylamine under ligand exchange to form the diphenylamido complex [Mn(NPh 2 ) 2 (THF)] 2 (1), which forms orange-red columnar crystals. 1 reacts in THF solution with NaN(SiMe 3 ) 2 and after crystallization from toluene yellow-orange Na 2 [Mn(NPh 2 ) 4 ] ´2 C 7 H 8 (2) is obtained. According to the crystal structure analyses the manganese atoms in 1 (space group P2 1 /c, Z = 2) are linked via the N atoms of two of the NPh 2 ± groups to form centrosymmetric Mn 2 N 2 four-membered rings with Mn±N bonds of almost the same length. 2 (space group I4 1 /a, Z = 4) forms a three-dimensional spacelattice structure, which arises from ªinner solvationº of the sodium atoms with the phenyl rings of the NPh 2 ± group.