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N,N-Bis(diphenyl-phosphino)-1,2-dimethyl-propyl-amine.

ABSTRACT: The diphenyl-phosphine groups in the title compound, C(29)H(31)NP(2), are staggered relative to the PNP backbone. The N atom adopts an almost planar geometry with the two P atoms and the C atom attached to it, in order to accommodate the steric bulk of the phenyl groups and the alkyl group. Three C atoms of the 1,2-dimethylpropylamine group are disordered over two positions in a 9:1 ratio. The mol-ecules pack diagonally in the unit cell across the ac plane in a head-to-tail fashion.

SUBMITTER: Cloete N

PROVIDER: S-EPMC2960458 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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N,N-Bis(diphenyl-phosphino)-1,2-dimethyl-propyl-amine.

Cloete Nicoline N Visser Hendrik G HG Roodt Andreas A Dixon Jontho T JT Blann Kevin K

Acta crystallographica. Section E, Structure reports online 20080123 Pt 2

The diphenyl-phosphine groups in the title compound, C(29)H(31)NP(2), are staggered relative to the PNP backbone. The N atom adopts an almost planar geometry with the two P atoms and the C atom attached to it, in order to accommodate the steric bulk of the phenyl groups and the alkyl group. Three C atoms of the 1,2-dimethylpropylamine group are disordered over two positions in a 9:1 ratio. The mol-ecules pack diagonally in the unit cell across the ac plane in a head-to-tail fashion. ...[more]

PMID: 21201505

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[N,N-Bis(diphenyl-phosphino)propyl-amine-?P,P']dichloridoplatinum(II).

Project description:The Pt(II) atom in the title compound, [PtCl(2)(C(27)H(27)NP(2))], has a highly distorted square-planar geometry, as evidenced by the P-Pt-P bite angle [72.4?(1)°]. The strain in the complex is further illustrated by the distorted tetra-hedral angles of the P atoms, which range between 93.5?(1) and 122.2?(1)°. It is of inter-est to note that the N atom has to adopt an almost planar geometry with the two P atoms and the C atom attached to it [it is displaced by 0.093?(2)?Å from the CP(2) plane] in order to accommodate the steric bulk of the phenyl groups and the alkyl group of the ligand coordinated to the Pt(II) centre. The mol-ecules pack in horizontal rows across the bc plane. C-H?Cl hydrogen bonds stabilize the crystal packing.

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Project description:The title centrosymmetric complex, [Cu(2)(CN)(2)(C(26)H(24)P(2))(3)]·2CH(3)OH, consists of two five-membered [Cu(dppe)CN] rings [dppe is 1,2-bis-(diphenyl-phosphino)ethane] bridged by one ?(2)-dppe ligand, and two methanol solvent mol-ecules. The angles around the central metal atom indicate that each Cu(I) atom is located in the center of a distorted tetra-hedron. The coordination sphere of each Cu(I) atom is formed by three P atoms from two dppe ligands, and one C atom from the cyanide ligand. The crystal structure is stabilized by O-H?N hydrogen bonds, which are formed by the O-H donor group from methanol and the N-atom acceptor from a cyanide ligand.

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[1,2-Bis(dimethyl-phosphino)ethane]carbon-yl(?-cyclo-penta-dien-yl)iron(II) diphenyl-phosphinoylborate.

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[N,N-Bis(diphenyl-phosphino)isopropyl-amine]dibromidonickel(II).

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N,N-Bis(diphenyl-phosphanyl)cyclo-propyl-amine.

Project description:In the title compound, C(27)H(25)NP(2), the diphenyl-phosphino groups are staggered relative to the PNP backbone. The dihedral angles between the phenyl rings bonded to each P atom are 51.74?(5) and 68.23?(4)°. The coordination around the N atom deviates from trigonal-pyrimidal geometry towards an almost planar arrangement between the N atom and the adjacent P and C atoms; the distance between the N atom and the plane formed by the adjacent C/P/P atoms is 0.098?(2)?Å.

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Project description:In the crystal structure of the title compound, [WCl(2)(NO)(C(6)H(16)P(2))(2)]Cl, the seven-coordinated tungsten(II) center displays a distorted penta-gonal-bipyramidal geometry with trans nitrosyl and chloride ligands. The NO and Cl ligands are disordered over two positions; the site occupancy factors are 0.6 and 0.4.

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?-1,2-Bis-(diphenyl-phos-phino)-ethane-?P:P'-bis-{[1,2-bis-(diphenyl-phosphino)-ethane-?P,P']bromidocopper(I)} acetone disolvate.

Project description:In the crystal structure of the title compound, [Cu(2)Br(2)(dppe)(3)]·2CH(3)COCH(3) [dppe is 1,2-bis-(diphenyl-phosphino)-ethane, C(26)H(24)P(2)], the two Cu centers are bridged by a dppe ligand and each metal center carries one chelating dppe unit, with the fourth coordination site available for the Br(-) anion. The mol-ecule is centrosymmetric, with the center of symmetry located between the methyl-ene C atoms of the bridging dppe ligand. The crystal structure is stabilized by intra-molecular C-H?Br hydrogen bonds and inter-molecular ?-? inter-actions, with a centroid-to-centroid distance of 3.2055?(1)?Å.

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