From chemistry-request #at# server.ccl.net Wed Sep 6 02:58:16 2000 Received: from dont.csc.cuhk.edu.hk (root&$at$&dont.csc.cuhk.edu.hk [137.189.6.34]) by server.ccl.net (8.8.7/8.8.7) with ESMTP id CAA07472 for ; Wed, 6 Sep 2000 02:58:14 -0400 Received: from l (dialup4-002.csc.cuhk.edu.hk [137.189.211.2]) by dont.csc.cuhk.edu.hk (8.9.3/8.9.3) with SMTP id OAA04715 for ; Wed, 6 Sep 2000 14:58:03 +0800 (HKT) Message-ID: <00ba01c017cf$e05e00e0$02d3bd89#* at *#l> Reply-To: "Kiniu WONG Kin-Yiu" From: "Kiniu WONG Kin-Yiu" To: Subject: G98: can "CISD" be tested by "STABLE" or "STALE=OPT" ? Date: Wed, 6 Sep 2000 14:58:27 +0800 Organization: Physics CUHK MIME-Version: 1.0 Content-Type: text/plain; charset="big5" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 Disposition-Notification-To: "Kiniu WONG Kin-Yiu" X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Dear all, After inputting # UCISD/6-31G(d) SCF=Tight Stable in Gaussian 98 (for workstation), I found that this input is the same as this one: # UHF/6-31G(d) SCF=Tight Stable That is G98 only calculates HF energy not the CI energy instead. Then it tests whether the HF (not CI)wavefunction is stable or not. So my question is: can "CISD" be tested by "STABLE" or "STALE=OPT" ? If yes, what should I input? Thanks in advance. Best regards, Kiniu WONG Kin-Yiu Undergraduate student Department of Physics The Chinese University of Hong Kong Email: kiniu[ AT ]cuhk.edu.hk or kyiwong[ AT ]phy.cuhk.edu.hk