We present the first abundances analysis based on high-resolution infrared ( IR ) echelle spectra of NGC 6569 and NGC 6624 , two moderately reddened globular clusters located in the outer bulge of the Galaxy .

We find [ Fe/H ] =-0.79 \pm 0.02 dex and [ Fe/H ] =-0.69 \pm 0.02 dex for NGC 6569 and NGC 6624 , respectively and an average \alpha -elements enhancement of \approx +0.43 \pm 0.02 dex and +0.39 \pm 0.02 dex , consistent with previous measurements on other metal-rich Bulge clusters .
We measure accurate radial velocities of < v _ { r } > = \ - - 47 \pm 4 ~ { } km~ { } s ^ { -1 } and < v _ { r } > = +51 \pm 3 ~ { } km~ { } s ^ { -1 } and velocity dispersions of \approx 8 ~ { } km~ { } s ^ { -1 } and \approx 6 ~ { } km~ { } s ^ { -1 } for NGC 6569 and NGC 6624 , respectively .

Finally , we find very low ^ { 12 } C / ^ { 13 } C isotopics ratio ( \leq 7 in NGC 6624 and \approx 5 in NGC 6569 ) , confirming the presence extra-mixing mechanisms during the red giant branch evolution phase .