(Adds Saudi denial, paragraph 4) By Parisa Hafezi TEHRAN, Jan 16 (Reuters) - Iran has denied it asked Saudi Arabia to ease tension with Washington over its disputed nuclear programme and Iraq but analysts said on Tuesday Tehran may be trying to prevent U.S.-allied Arab states lining up against it. A Saudi official said on Monday that Iran's chief nuclear negotiator, Ali Larijani, had delivered a message from Iranian leaders to the Saudi king, urging him to convey a message of goodwill from Tehran to Washington. "(The report about) Iran asking Saudi Arabia to mediate between Iran and America is baseless," Iranian Foreign Ministry spokesman Mohammad Ali Hosseini was quoted as saying by the state-owned Iran newspaper. In Riyadh, the state-run Saudi Press Agency also published a denial on Tuesday, quoting an unnamed official as saying the report was "totally untrue". Hosseini could not be reached for further comment. Iran's state media have only said Larijani's visit was to improve relations. "Iran and Saudi Arabia's cooperation helps to create a better climate for bringing Shi'ites and Sunnis together," Larijani told Iran's state radio on Tuesday. Analysts said Larijani's visit to Riyadh might be part of efforts to prevent Sunni Muslim Arab states such as Saudi Arabia, concerned about Tehran's atomic ambitions, from lining up against Shi'ite Muslim Iran, a worry expressed by Iran's leadership. Larijani's visit took place shortly before U.S. Secretary of State Condoleezza Rice arrived in Saudi Arabia on Monday, as part of a Middle East tour. Rice and other U.S. leaders have put a fresh emphasis on checking Iran's influence in Iraq and elsewhere. The visit, according to Iranian political scientist Nasser Hadian-Jazy, "is a counter move to what Secretary Rice is going to do to unite the Arabs against Iran". He said it also showed the renewed influence of moderate conservatives, such as Larijani, amid growing public criticism of Iranian President Mahmoud Ahmadinejad and his anti-U.S. speeches that are seen to have aggravated tension, particularly over the nuclear issue. 'NEUTRALISE PRESSURE' Some politicians and officials say Larijani and other moderate officials are frustrated by Ahmadinejad, who they say has provoked confrontation and made it more difficult for Iran to secure what it calls its "nuclear rights". "In a calm and quiet atmosphere, Iran can neutralise America's pressure on its atomic work. Fiery speeches worsen the situation," said one official, who asked not to be identified because of sensitivity of the issue. Ahmadinejad may not be the most powerful figure in Iran, where the final say rests with Supreme Leader Ayatollah Ali Khamenei, but Western diplomats say his provocative public tone has helped drive a tougher line. His stance has worried Washington, and Arab states, particularly those in the Gulf, are also watching Iran's nuclear programme with growing alarm. "I see Larijani's visit more in the framework of trying to appease Sunni states. While American pressure is building up around them, they (the Iranians) don't want to face Sunni hostility as well," said one political analyst, who asked not to be identified. (Additional reporting by Edmund Blair)
