The synthesis, molecular structure, spectroscopic properties and bonding in a complex of dinitrogen with trivalent uranium are described. The molecule has a side-on U–N2–U core which is supported by U N2 donation with no significant N2U bonding. Steric compression between the spectator triamidoamine ligands prevents the uranium atoms from approaching the N2 ligand at the optimum distance for overlap, and thus the N–N distance is not displaced significantly from that in gaseous dinitrogen. © 2001 Elsevier Science B.V. All rights reserved.
This review covers the activation of molecular pnictogens (group 15 elements) by homogeneous rare earth and actinide complexes. All examples of molecular pnictogen activation (dinitrogen, white phosphorus, yellow arsenic) by both rare earths and actinides, to date (2015), are discussed, focusing on synthetic methodology and the structure and bonding of the resulting complexes.
This study carried out the direct-bonding between titanium and polyamide using nanosecond laser, investigated the effect of the textured micro-groove depth on the strength of the joint and obtained the optimal joint strength.