doi:10.1039/d1qi00586cengBlasco D.López-De-Luzuriaga J.M.Monge M.Olmos M.E.Rodríguez-Castillo M.Amaveda H.Mora M.García Sakai V.Martínez-González J.A.Multidisciplinary study on the hydrogelation of the digold(i) complex [{Au(9: N -adeninate)}2(µ-dmpe)]: Optical, rheological, and quasi-elastic neutron scattering perspectivesART-2021-126861Herein, the syntheses of [{Au(9N-adeninate)}2(µ-dmpe)] (2, dmpe = 1, 2-bis(dimethylphosphino)ethane) and its chloride precursor [(AuCl)2(µ-dmpe)] (1) are described. X-ray diffraction of 2 reveals a short intramolecular aurophilic interaction (2.9921(7) Å), which is present even when 2 crystallizes from its own hydrometallogel (3.0512(3) Å). This interaction is demonstrated by TD-DFT calculations to be participating in the intense blue phosphorescence that 2 displays in the solid state and, presumably, also in the hydrogel one. Finally, as complex 2 could be understood as a formal dimer of LMWG [Au(9N-adeninate)(PMe3)] (3), the hydrogelation of the former is examined, with special regard to its optical, rheological and quasi-elastic neutron scattering properties, which are compared to those of 32021http://zaguan.unizar.es/record/12000410.1039/d1qi00586chttp://zaguan.unizar.es/record/120004oai:zaguan.unizar.es:120004info:eu-repo/grantAgreement/ES/MCIU-FEDER/ECQ2018-004082info:eu-repo/grantAgreement/ES/MICINN/PID2019-104379RB-C22Inorganic Chemistry Frontiers 8, 15 (2021), 3707-3715All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/openAccess