Structural features of Ir(NO)(PPh3)(O2C6Br4), a complex molecule containing both quinone and nitrosyl ligands

Abstract

Registry No. [Mn(CsH1604)2](Br3)2, 73017-46-6. Supplementary Material Available: A listing of structure factor amplitudes (3 pages). Ordering information is given on any current masthead page. (8) van Remoortere, F. P.; Boer, F. P. Inorg. Chem. 1974, 13, 2071. (9) Boer, F. P.; Neuman, M. A.; van Remoortere, F. P.; Steiner, E. C.

Oxidative substitution of pentacarbonylmanganese(1-) by 3,5-di-tert-butyl-1,2-benzoquinone. Synthesis and characterization of the unsaturated Mn(CO)3(DBCat)- anion

“…Catecholate Ligands 04-C4 04'-C4' 1.334 (9) 04"-C4" 1.344 (11) 05-C5 1.352 (11) 05'-C5' 1.335 (10) 05"-C5" 1.343 (11) C4-C5 C4'-C5' 1.384 (12) C4"-C5"…”

“…1.390 (13) C5-C6 C5'-C6' 1.401 (11) C5"-C6" C6'-C7' 1.400 (12) C6"-C7" C7'-C8' 1.379 (11) C7"-C8" 1.392 (12) C8-C9 C8'-C9' 1.401 (11) C8"-C9"…”

“…4 Catecholate ligands are more effective donors than the o-semiquinones, and there is evidence that chelated catecholate ligands may, synergistically, stabilize the bonding to acceptors. 12 To investigate this possibility, we have examined the reaction between 3,5-di-ZerZ-butyl-1,2-benzoquinone and the Mn(CO)5" anion. This reaction might be expected to occur by way of a two-electron oxidative addition process to give the chelated catecholate anion Mn(DBCat)(CO)4", with stabilized CO coordination by virtue of catechol donation.…”

Iridium nitrosyl complexes of 9,10-phenanthrenequinone di-imine. Crystal structure of [Ir(NO){HNC14H8N(PPh3)}(PPh3)][PF6], a species containing a phosphazene–imido-ligand

“…[Ir(NO)(Hpqd-PPh3)(PPh3)][PF6] (3). In a typical preparation, NaHC03 (30 mg) was added to a suspension of complex (2) (0.1 mmol) in ethanol (15 cm3).…”

“…Crystal-structure Determination of Complex (3).-The crystal used for data collection had dimensions 0.03 x 0.22 x 0.24 mm. Intensity data were collected on an automatic Philips PW 1100 computer-controlled diffractometer, equipped with a graphite monochromator, using Mo-K, radiation.…”