ZOA CTLR MISJUDGED SEPARATION NEEDED BTWN CLBING F16 AND 2 ACR ACFT; OPPOSITE DIRECTION; AND INCURS A LOSS OF SEPARATION.

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3 ACFT INVOLVED WERE ACFT X; F16 FROM FAT ON ENG TEST FLT RTE OF FLT AND ALTS AS PER LOA. ACR Y OFF OF SMF AT FL370 ENRTE TO LOS ANGELES BASIN. ACR Z OFF OF LOS ANGELES BASIN ENRTE TO SMF AT FL350. CHAIN OF EVENTS WAS ACFT X WAS ISSUED A CLB TO BLOCK ALT OF FL208-FL310 (AS PER LOA). ACFT X WAS NEXT REQUESTING FL390-FL410. AT FIRST ONLY CONFLICTING ACFT WAS ACR Z NBOUND AT FL350 WHICH WAS ISSUED A HDG OF 345 DEGS TO STAY AWAY FROM ACFT X. ACR Y WAS ISSUED BLOCK ALT FL390-FL410. ACFT X WAS ASKED HOW LONG IT WOULD TAKE TO CLB TO FL390. ACFT SAID 40 SECONDS. ACR Z WAS ISSUED THE CLB TO FL390 TO FL410 AND WAS TOLD TO EXPEDITE CLB. ACFT X NOW BECAME TFC FOR ACR Y AT THIS POINT ACR Y WAS AT FL370 SBOUND ON J7. ACR Y WAS ISSUED A DSCNT TO FL330 TO GO UNDER ACFT X. CLBING TO BLOCK ALT FL390-FL410 1 MIN LATER THIS ACTION WAS NOT WORKING. SO ACR Z WAS ISSUED A HDG OF 145 DEGS TO E OF ACR Z. THIS ACTION NOW PUT ACFT X IN CONFLICT OF ACR Y WHICH WAS STILL ON A HDG OF 345 DEGS. THIS ACTION WAS NOTED: HDG 145 DEGS ON ACR Z WAS TOO MUCH OF EASTERLY HDG; THIS BROUGHT THE 2 ACR Y ACFT SIDE-BY-SIDE AT 4.09 MI AND 1600 FT. A LOSS OF STANDARD ATC SEPARATION. TO LOOK BACK AFTER THE FACT; THE BEST THING TO DO WAS TO KEEP ACFT X CIRCLING NLC A LITTLE LONGER AT BLOCK ALT FL280-FL310 TILL BOTH ACR Y AND ACR Z HAD CLRED.