ATHENS, Nov 8 (Reuters) - Greek party leaders are struggling to agree on a new prime minister, despite EU demands that the political class commit itself fast to the nation's financial salvation and end the chaos threatening the entire euro project. Monday came and went without any accord on who will lead a new national unity coalition, despite plenty of talk that a former vice president of the European Central Bank, Lucas Papademos, would get the job. The cabinet was due to hold an emergency session on Tuesday and officials said negotiations were under way on the "100-day coalition" which must win parliamentary approval for a euro zone bailout and save the country from bankruptcy. But after an early burst of compromise as the EU turned the screws on both sides,burberry outlet cheapthe drive by the socialist and conservative parties to create a government which will rule only until February appeared to be losing momentum. Frustration was apparent in Brussels where officials said the new government had to show it was serious about implementing promises Athens has made to its EU and IMF lenders in return for the 130 billion-euro bailout. "It is essential that the entire political class is now restoring the confidence that had been lost in the Greek commitment to the EU/IMF programme," said EU Economic and Monetary Affairs Commissioner Olli Rehn. Prime Minister George Papandreou provoked chaos last week by calling a referendum on the bailout, a vote which would probably have rejected the package due to its demands for austerity. Papandreou backed down, but was forced into agreeing to make way for the unity coalition. BROKEN PROMISES Weary of past broken promises from Athens, Rehn said the coalition must "express a clear commitment on paper, in writing, to the EU/IMF programme". The stakes could not be higher. Greece faces bankruptcy in December when big debt repayments are due, unless it can get hold of more emergency funding soon. For the euro zone, it is a question of credibility with international financial markets. For two years it has laboured to solve the problems of Greece, a very small part of the bloc's economy, leading to doubts about how it would manage if the debt crisis engulfed the far bigger Italian or Spanish economies.