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[Tris(&sigma -diaminobenzene)Rhenium(VII)]+ Ion
The [Tris(&sigma -diaminobenzene)Rhenium(VII)]+ Ion is shown (with mulitple bonds) on your left. Each ligand carries a 2- charge. Three 2- ligands coordinate to the Re(VII) ion to create a complex with overall charge of +1.
Reference: A.A. Danopoulos, A.C.C. Wong, G. Wilkinson, M.B. Hursthouse, B. Hussain; J. Chem. Soc., Dalton Trans, 1990, 315.