Reaction of ligand LH
2
(4,5-bis[carboxymethylthio]-1,3-dithiol-2-thione) with neodymium silyl-amide (Nd[N(TMS)
2
]
3
; TMS= -SiMe
3
), in a ratio 2:1, yields a neodymium-dithiolene-carboxylato complex (
1
) (Nd(LH)L). Similarly, reaction of 2 equivalents of LH
2
(4,5-bis[2-hydroxyethyl)thio]-1,3-dithiol-2-thione) and one equivalent of neodymium silyl-amide (Nd[N(TMS)
2
]
3
) allowed the isolation of complex
2
, with a ligand:metal ratio of 3:2. ATR-IR spectrum of
1
displays a broad band characteristic of an OH group showing that one carboxylate group remains protonated. Emission spectrum of complex
1
under excitation in the visible region (at 360 nm i.e. on the ligand) displayed typical emission bands of the Nd
3+
, showing that energy transfer from the ligand to the lanthanide was achieved (i.e. antenna effect). No significant quenching from the remaining -OH group was detected. In the case of complex
2
, the main emission bands characteristic of the Nd
3+
ion have been observed, by excitation at 495 nm.