title: 1,1,2,2-Tetra-kis(diisopropyl-amino)diphosphane.
abstract: In the title compound, C(24)H(56)N(4)P(2), the distance between the P atoms [2.2988 (8) and 2.3013 (13) Å in the major and minor occupancy components, respectively] is one of the longest reported for uncoordinated diphosphanes. The whole mol-ecule is disordered over two positions with site-occupation factors of 0.6447 (8) and 0.3553 (8). The structure adopts the synperiplanar conformation in the solid state [N-P-P-N torsion angle = 14.7 (5)°].
authors.affiliation: Chemical Faculty, Gdansk University of Technology, G.Narutowicza 11/12, Gdansk PL-80233, Poland.
authors.forename: Rafał
authors.initials: R
authors.lastname: Grubba
authors.forename: Lukasz
authors.initials: L
authors.lastname: Ponikiewski
authors.forename: Jarosław
authors.initials: J
authors.lastname: Chojnacki
authors.forename: Jerzy
authors.initials: J
authors.lastname: Pikies