Center controller reported an airborne conflict.

Attributes
ACN	1767155
Time
Date	202010
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	Small Aircraft Low Wing 2 Eng Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	Descent
Flight Plan	IFR
Aircraft 2
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 28
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy

Narrative:

Aircraft X was going direct to zzzzz [intersection] landing; so he was in a slow descent I told him to increase the rate; he did. Aircraft Y was climbing on a 300 heading the aircraft were going to be separated and the RA alert made the aircraft X climb into the aircraft Y and then forced the aircraft Y to descend.I should have had a human [assisting me]; but it's too difficult to speak through a mask and give control instructions.

Original NASA ASRS Text

Title: Center Controller reported an airborne conflict.

Narrative: Aircraft X was going direct to ZZZZZ [Intersection] landing; so he was in a slow descent I told him to increase the rate; he did. Aircraft Y was climbing on a 300 heading the aircraft were going to be separated and the RA alert made the Aircraft X climb into the Aircraft Y and then forced the Aircraft Y to descend.I should have had a Human [assisting me]; but it's too difficult to speak through a mask and give control instructions.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.