Preparation and single-crystal characterization of manganese(II) complexes of dichalcogenoimidodiphosphinato ligands. Monomeric versus dimeric Mn[(OPPh2)(XPPh2)N]2 (X=S, O)

X-ray and computational structural study of neutral bis(N,N,N′,N′-tetramethylthiophosphoramidoyl)-methylamine

“…Much emphasis has been placed on bis(N,N,N¢,N¢-tetramethylthiophosphoramidoyl)-methylamine analogs like the tetramethyldithioimidiophosphonic acid [1,2] and their chalcogenic derivatives [3][4][5]. Recently, a cumulative review summarizing their synthesis and reactivity has been published [6].…”

Structural and magnetic properties of the binuclear [Co2{(OPPh2)2N}4] complex: Ferromagnetic coupling between the two S=3/2 Co(II) ions

“…On the other hand, the magnetic properties of [Mn 2 {(OPPh 2 ) 2 N} 4 ] [17] have not yet been investigated. It should also be noted that the distorted trigonal bipyramidal Co(III) complex, [Co{g 2 -(OPPh 2 ) 2 N} 2 {g 1 -(OPPh 2 ) 2 N}], shows an unusual paramagnetism corresponding to four unpaired electrons (l eff = 5.2 BM) [21], which would merit additional investigation.…”

“…The crystal data and refinement statistics are shown in Table S1. Selected bond lengths and angles are listed in Table S2 [17]. In this complex, the four MnÀO bond lengths involving the monometallic biconnective [(OPPh 2 ) 2 N] À ligands average at 2.069 Å, whereas the four MnÀO(bridging) and the two MnÀO(non-bridging) bond lengths involving the bimetallic triconnective [(OPPh 2 ) 2 N] À ligands average at 2.216 and 2.045 Å, respectively [17].…”

“…Selected bond lengths and angles are listed in Table S2 [17]. In this complex, the four MnÀO bond lengths involving the monometallic biconnective [(OPPh 2 ) 2 N] À ligands average at 2.069 Å, whereas the four MnÀO(bridging) and the two MnÀO(non-bridging) bond lengths involving the bimetallic triconnective [(OPPh 2 ) 2 N] À ligands average at 2.216 and 2.045 Å, respectively [17]. In [Co 2 {(OPPh 2 ) 2 N} 4 ], the coordination geometry of each Co(II) is distorted trigonal bipyramidal, as confirmed from the following bond angles (Table S2) [17].…”

Δομικές φασματοσκοπικές και μαγνητικές ιδιότητες συμπλόκων των στοιχείων Mn Fe Co Ni Cu Zn με χηλικούς ιμιδοδιφωσφινικούς υποκαταστάτες

“…Μικτά παράγωγα της μορφής (XPR 2 )(YPR 2 )NH μπορούν να παρασκευαστούν με πορεία δύο βημάτων οξείδωσης. Έτσι, μερική οξείδωση δομή33,34 με τα μήκη δεσμών Mn-O και Mn-S να βρίσκονται στα 2,035 και 2,447 Ǻ, αντιστοίχως κατά μέσο όρο. Όσον αφορά το διοξυγονωμένο υποκαταστάτη, έχει παρασκευαστεί σύμπλοκο του Mn(II) αλλά και του Mn(III).…”